/* * os_linux.cpp * * Home page of code is: https://www.smartmontools.org * * Copyright (C) 2003-11 Bruce Allen * Copyright (C) 2003-11 Doug Gilbert * Copyright (C) 2008-22 Christian Franke * * Original AACRaid code: * Copyright (C) 2014 Raghava Aditya * * Original Areca code: * Copyright (C) 2008-12 Hank Wu * Copyright (C) 2008 Oliver Bock * * Original MegaRAID code: * Copyright (C) 2008 Jordan Hargrave * * 3ware code was derived from code that was: * * Written By: Adam Radford * Modifications By: Joel Jacobson * Arnaldo Carvalho de Melo * Brad Strand * * Copyright (C) 1999-2003 3ware Inc. * * Kernel compatibility By: Andre Hedrick * Non-Copyright (C) 2000 Andre Hedrick * * Other ars of this file are derived from code that was * * Copyright (C) 1999-2000 Michael Cornwell * Copyright (C) 2000 Andre Hedrick * * SPDX-License-Identifier: GPL-2.0-or-later */ #include "config.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include // for offsetof() #include #include #include #ifdef HAVE_SYS_SYSMACROS_H // glibc 2.25: The inclusion of by is // deprecated. A warning is printed if major(), minor() or makedev() // is used but is not included. #include #endif #ifdef HAVE_LIBSELINUX #include #endif #include "atacmds.h" #include "os_linux.h" #include "scsicmds.h" #include "utility.h" #include "cciss.h" #include "megaraid.h" #include "sssraid.h" #include "aacraid.h" #include "nvmecmds.h" #include "dev_interface.h" #include "dev_ata_cmd_set.h" #include "dev_areca.h" // "include/uapi/linux/nvme_ioctl.h" from Linux kernel sources #include "linux_nvme_ioctl.h" // nvme_passthru_cmd, NVME_IOCTL_ADMIN_CMD #ifndef ENOTSUP #define ENOTSUP ENOSYS #endif #define ARGUSED(x) ((void)(x)) const char * os_linux_cpp_cvsid = "$Id: os_linux.cpp 5314 2022-02-02 17:34:26Z chrfranke $" OS_LINUX_H_CVSID; extern unsigned char failuretest_permissive; namespace os_linux { // No need to publish anything, name provided for Doxygen ///////////////////////////////////////////////////////////////////////////// /// Shared open/close routines class linux_smart_device : virtual public /*implements*/ smart_device { public: explicit linux_smart_device(int flags, int retry_flags = -1) : smart_device(never_called), m_fd(-1), m_flags(flags), m_retry_flags(retry_flags) { } virtual ~linux_smart_device(); virtual bool is_open() const override; virtual bool open() override; virtual bool close() override; protected: /// Return filedesc for derived classes. int get_fd() const { return m_fd; } void set_fd(int fd) { m_fd = fd; } private: int m_fd; ///< filedesc, -1 if not open. int m_flags; ///< Flags for ::open() int m_retry_flags; ///< Flags to retry ::open(), -1 if no retry }; linux_smart_device::~linux_smart_device() { if (m_fd >= 0) ::close(m_fd); } bool linux_smart_device::is_open() const { return (m_fd >= 0); } bool linux_smart_device::open() { m_fd = ::open(get_dev_name(), m_flags); if (m_fd < 0 && errno == EROFS && m_retry_flags != -1) // Retry m_fd = ::open(get_dev_name(), m_retry_flags); if (m_fd < 0) { if (errno == EBUSY && (m_flags & O_EXCL)) // device is locked return set_err(EBUSY, "The requested controller is used exclusively by another process!\n" "(e.g. smartctl or smartd)\n" "Please quit the impeding process or try again later..."); return set_err((errno==ENOENT || errno==ENOTDIR) ? ENODEV : errno); } if (m_fd >= 0) { // sets FD_CLOEXEC on the opened device file descriptor. The // descriptor is otherwise leaked to other applications (mail // sender) which may be considered a security risk and may result // in AVC messages on SELinux-enabled systems. if (-1 == fcntl(m_fd, F_SETFD, FD_CLOEXEC)) // TODO: Provide an error printing routine in class smart_interface pout("fcntl(set FD_CLOEXEC) failed, errno=%d [%s]\n", errno, strerror(errno)); } return true; } // equivalent to close(file descriptor) bool linux_smart_device::close() { int fd = m_fd; m_fd = -1; if (::close(fd) < 0) return set_err(errno); return true; } // examples for smartctl static const char smartctl_examples[] = "=================================================== SMARTCTL EXAMPLES =====\n\n" " smartctl --all /dev/sda (Prints all SMART information)\n\n" " smartctl --smart=on --offlineauto=on --saveauto=on /dev/sda\n" " (Enables SMART on first disk)\n\n" " smartctl --test=long /dev/sda (Executes extended disk self-test)\n\n" " smartctl --attributes --log=selftest --quietmode=errorsonly /dev/sda\n" " (Prints Self-Test & Attribute errors)\n" " smartctl --all --device=3ware,2 /dev/sda\n" " smartctl --all --device=3ware,2 /dev/twe0\n" " smartctl --all --device=3ware,2 /dev/twa0\n" " smartctl --all --device=3ware,2 /dev/twl0\n" " (Prints all SMART info for 3rd ATA disk on 3ware RAID controller)\n" " smartctl --all --device=hpt,1/1/3 /dev/sda\n" " (Prints all SMART info for the SATA disk attached to the 3rd PMPort\n" " of the 1st channel on the 1st HighPoint RAID controller)\n" " smartctl --all --device=areca,3/1 /dev/sg2\n" " (Prints all SMART info for 3rd ATA disk of the 1st enclosure\n" " on Areca RAID controller)\n" ; ///////////////////////////////////////////////////////////////////////////// /// Linux ATA support class linux_ata_device : public /*implements*/ ata_device_with_command_set, public /*extends*/ linux_smart_device { public: linux_ata_device(smart_interface * intf, const char * dev_name, const char * req_type); protected: virtual int ata_command_interface(smart_command_set command, int select, char * data) override; }; linux_ata_device::linux_ata_device(smart_interface * intf, const char * dev_name, const char * req_type) : smart_device(intf, dev_name, "ata", req_type), linux_smart_device(O_RDONLY | O_NONBLOCK) { } // PURPOSE // This is an interface routine meant to isolate the OS dependent // parts of the code, and to provide a debugging interface. Each // different port and OS needs to provide it's own interface. This // is the linux one. // DETAILED DESCRIPTION OF ARGUMENTS // device: is the file descriptor provided by open() // command: defines the different operations. // select: additional input data if needed (which log, which type of // self-test). // data: location to write output data, if needed (512 bytes). // Note: not all commands use all arguments. // RETURN VALUES // -1 if the command failed // 0 if the command succeeded, // STATUS_CHECK routine: // -1 if the command failed // 0 if the command succeeded and disk SMART status is "OK" // 1 if the command succeeded and disk SMART status is "FAILING" #define BUFFER_LENGTH (4+512) int linux_ata_device::ata_command_interface(smart_command_set command, int select, char * data) { unsigned char buff[BUFFER_LENGTH]; // positive: bytes to write to caller. negative: bytes to READ from // caller. zero: non-data command int copydata=0; const int HDIO_DRIVE_CMD_OFFSET = 4; // See struct hd_drive_cmd_hdr in hdreg.h. Before calling ioctl() // buff[0]: ATA COMMAND CODE REGISTER // buff[1]: ATA SECTOR NUMBER REGISTER == LBA LOW REGISTER // buff[2]: ATA FEATURES REGISTER // buff[3]: ATA SECTOR COUNT REGISTER // Note that on return: // buff[2] contains the ATA SECTOR COUNT REGISTER // clear out buff. Large enough for HDIO_DRIVE_CMD (4+512 bytes) memset(buff, 0, BUFFER_LENGTH); buff[0]=ATA_SMART_CMD; switch (command){ case CHECK_POWER_MODE: buff[0]=ATA_CHECK_POWER_MODE; copydata=1; break; case READ_VALUES: buff[2]=ATA_SMART_READ_VALUES; buff[3]=1; copydata=512; break; case READ_THRESHOLDS: buff[2]=ATA_SMART_READ_THRESHOLDS; buff[1]=buff[3]=1; copydata=512; break; case READ_LOG: buff[2]=ATA_SMART_READ_LOG_SECTOR; buff[1]=select; buff[3]=1; copydata=512; break; case WRITE_LOG: break; case IDENTIFY: buff[0]=ATA_IDENTIFY_DEVICE; buff[3]=1; copydata=512; break; case PIDENTIFY: buff[0]=ATA_IDENTIFY_PACKET_DEVICE; buff[3]=1; copydata=512; break; case ENABLE: buff[2]=ATA_SMART_ENABLE; buff[1]=1; break; case DISABLE: buff[2]=ATA_SMART_DISABLE; buff[1]=1; break; case STATUS: // this command only says if SMART is working. It could be // replaced with STATUS_CHECK below. buff[2]=ATA_SMART_STATUS; break; case AUTO_OFFLINE: // NOTE: According to ATAPI 4 and UP, this command is obsolete // select == 241 for enable but no data transfer. Use TASK ioctl. buff[1]=ATA_SMART_AUTO_OFFLINE; buff[2]=select; break; case AUTOSAVE: // select == 248 for enable but no data transfer. Use TASK ioctl. buff[1]=ATA_SMART_AUTOSAVE; buff[2]=select; break; case IMMEDIATE_OFFLINE: buff[2]=ATA_SMART_IMMEDIATE_OFFLINE; buff[1]=select; break; case STATUS_CHECK: // This command uses HDIO_DRIVE_TASK and has different syntax than // the other commands. buff[1]=ATA_SMART_STATUS; break; default: pout("Unrecognized command %d in linux_ata_command_interface()\n" "Please contact " PACKAGE_BUGREPORT "\n", command); errno=ENOSYS; return -1; } // This command uses the HDIO_DRIVE_TASKFILE ioctl(). This is the // only ioctl() that can be used to WRITE data to the disk. if (command==WRITE_LOG) { unsigned char task[sizeof(ide_task_request_t)+512]; ide_task_request_t *reqtask=(ide_task_request_t *) task; task_struct_t *taskfile=(task_struct_t *) reqtask->io_ports; memset(task, 0, sizeof(task)); taskfile->data = 0; taskfile->feature = ATA_SMART_WRITE_LOG_SECTOR; taskfile->sector_count = 1; taskfile->sector_number = select; taskfile->low_cylinder = 0x4f; taskfile->high_cylinder = 0xc2; taskfile->device_head = 0; taskfile->command = ATA_SMART_CMD; reqtask->data_phase = TASKFILE_OUT; reqtask->req_cmd = IDE_DRIVE_TASK_OUT; reqtask->out_size = 512; reqtask->in_size = 0; // copy user data into the task request structure memcpy(task+sizeof(ide_task_request_t), data, 512); if (ioctl(get_fd(), HDIO_DRIVE_TASKFILE, task)) { if (errno==EINVAL) pout("Kernel lacks HDIO_DRIVE_TASKFILE support; compile kernel with CONFIG_IDE_TASK_IOCTL set\n"); return -1; } return 0; } // There are two different types of ioctls(). The HDIO_DRIVE_TASK // one is this: if (command==STATUS_CHECK || command==AUTOSAVE || command==AUTO_OFFLINE){ // NOT DOCUMENTED in /usr/src/linux/include/linux/hdreg.h. You // have to read the IDE driver source code. Sigh. // buff[0]: ATA COMMAND CODE REGISTER // buff[1]: ATA FEATURES REGISTER // buff[2]: ATA SECTOR_COUNT // buff[3]: ATA SECTOR NUMBER // buff[4]: ATA CYL LO REGISTER // buff[5]: ATA CYL HI REGISTER // buff[6]: ATA DEVICE HEAD unsigned const char normal_lo=0x4f, normal_hi=0xc2; unsigned const char failed_lo=0xf4, failed_hi=0x2c; buff[4]=normal_lo; buff[5]=normal_hi; if (ioctl(get_fd(), HDIO_DRIVE_TASK, buff)) { if (errno==EINVAL) { pout("Error SMART Status command via HDIO_DRIVE_TASK failed"); pout("Rebuild older linux 2.2 kernels with HDIO_DRIVE_TASK support added\n"); } else syserror("Error SMART Status command failed"); return -1; } // Cyl low and Cyl high unchanged means "Good SMART status" if (buff[4]==normal_lo && buff[5]==normal_hi) return 0; // These values mean "Bad SMART status" if (buff[4]==failed_lo && buff[5]==failed_hi) return 1; // We haven't gotten output that makes sense; print out some debugging info syserror("Error SMART Status command failed"); pout("Please get assistance from " PACKAGE_HOMEPAGE "\n"); pout("Register values returned from SMART Status command are:\n"); pout("ST =0x%02x\n",(int)buff[0]); pout("ERR=0x%02x\n",(int)buff[1]); pout("NS =0x%02x\n",(int)buff[2]); pout("SC =0x%02x\n",(int)buff[3]); pout("CL =0x%02x\n",(int)buff[4]); pout("CH =0x%02x\n",(int)buff[5]); pout("SEL=0x%02x\n",(int)buff[6]); return -1; } #if 1 // Note to people doing ports to other OSes -- don't worry about // this block -- you can safely ignore it. I have put it here // because under linux when you do IDENTIFY DEVICE to a packet // device, it generates an ugly kernel syslog error message. This // is harmless but frightens users. So this block detects packet // devices and make IDENTIFY DEVICE fail "nicely" without a syslog // error message. // // If you read only the ATA specs, it appears as if a packet device // *might* respond to the IDENTIFY DEVICE command. This is // misleading - it's because around the time that SFF-8020 was // incorporated into the ATA-3/4 standard, the ATA authors were // sloppy. See SFF-8020 and you will see that ATAPI devices have // *always* had IDENTIFY PACKET DEVICE as a mandatory part of their // command set, and return 'Command Aborted' to IDENTIFY DEVICE. if (command==IDENTIFY || command==PIDENTIFY){ unsigned short deviceid[256]; // check the device identity, as seen when the system was booted // or the device was FIRST registered. This will not be current // if the user has subsequently changed some of the parameters. If // device is a packet device, swap the command interpretations. if (!ioctl(get_fd(), HDIO_GET_IDENTITY, deviceid) && (deviceid[0] & 0x8000)) buff[0]=(command==IDENTIFY)?ATA_IDENTIFY_PACKET_DEVICE:ATA_IDENTIFY_DEVICE; } #endif // We are now doing the HDIO_DRIVE_CMD type ioctl. if ((ioctl(get_fd(), HDIO_DRIVE_CMD, buff))) return -1; // CHECK POWER MODE command returns information in the Sector Count // register (buff[3]). Copy to return data buffer. if (command==CHECK_POWER_MODE) buff[HDIO_DRIVE_CMD_OFFSET]=buff[2]; // if the command returns data then copy it back if (copydata) memcpy(data, buff+HDIO_DRIVE_CMD_OFFSET, copydata); return 0; } // >>>>>> Start of general SCSI specific linux code /* Linux specific code. * Historically smartmontools (and smartsuite before it) used the * SCSI_IOCTL_SEND_COMMAND ioctl which is available to all linux device * nodes that use the SCSI subsystem. A better interface has been available * via the SCSI generic (sg) driver but this involves the extra step of * mapping disk devices (e.g. /dev/sda) to the corresponding sg device * (e.g. /dev/sg2). In the linux kernel 2.6 series most of the facilities of * the sg driver have become available via the SG_IO ioctl which is available * on all SCSI devices (on SCSI tape devices from lk 2.6.6). * So the strategy below is to find out if the SG_IO ioctl is available and * if so use it; failing that use the older SCSI_IOCTL_SEND_COMMAND ioctl. * Should work in 2.0, 2.2, 2.4 and 2.6 series linux kernels. */ #define MAX_DXFER_LEN 1024 /* can be increased if necessary */ #define SEND_IOCTL_RESP_SENSE_LEN 16 /* ioctl limitation */ #define SG_IO_RESP_SENSE_LEN 64 /* large enough see buffer */ #define LSCSI_DRIVER_MASK 0xf /* mask out "suggestions" */ #define LSCSI_DRIVER_SENSE 0x8 /* alternate CHECK CONDITION indication */ #define LSCSI_DID_ERROR 0x7 /* Need to work around aacraid driver quirk */ #define LSCSI_DRIVER_TIMEOUT 0x6 #define LSCSI_DID_TIME_OUT 0x3 #define LSCSI_DID_BUS_BUSY 0x2 #define LSCSI_DID_NO_CONNECT 0x1 #ifndef SCSI_IOCTL_SEND_COMMAND #define SCSI_IOCTL_SEND_COMMAND 1 #endif #define SG_IO_USE_DETECT 0 #define SG_IO_UNSUPP 1 #define SG_IO_USE_V3 3 #define SG_IO_USE_V4 4 static int sg_io_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report, int sgio_ver); static int sisc_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report); static int sg_io_state = SG_IO_USE_DETECT; /* Preferred implementation for issuing SCSI commands in linux. This * function uses the SG_IO ioctl. Return 0 if command issued successfully * (various status values should still be checked). If the SCSI command * cannot be issued then a negative errno value is returned. */ static int sg_io_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report, int sg_io_ver) { #ifndef SG_IO ARGUSED(dev_fd); ARGUSED(iop); ARGUSED(report); return -ENOTTY; #else /* we are filling structures for both versions, but using only one requested */ struct sg_io_hdr io_hdr_v3; struct sg_io_v4 io_hdr_v4; #ifdef SCSI_CDB_CHECK bool ok = is_scsi_cdb(iop->cmnd, iop->cmnd_len); if (! ok) { int n = iop->cmnd_len; const unsigned char * ucp = iop->cmnd; pout(">>>>>>>> %s: cdb seems invalid, opcode=0x%x, len=%d, cdb:\n", __func__, ((n > 0) ? ucp[0] : 0), n); if (n > 0) { if (n > 16) pout(" <>\n"); dStrHex((const uint8_t *)ucp, ((n > 16) ? 16 : n), 1); } } #endif if (report > 0) { int k, j; const unsigned char * ucp = iop->cmnd; const char * np; char buff[256]; const int sz = (int)sizeof(buff); pout(">>>> do_scsi_cmnd_io: sg_io_ver=%d\n", sg_io_ver); np = scsi_get_opcode_name(ucp[0]); j = snprintf(buff, sz, " [%s: ", np ? np : ""); for (k = 0; k < (int)iop->cmnd_len; ++k) j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "%02x ", ucp[k]); if ((report > 1) && (DXFER_TO_DEVICE == iop->dxfer_dir) && (iop->dxferp)) { int trunc = (iop->dxfer_len > 256) ? 1 : 0; snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n Outgoing " "data, len=%d%s:\n", (int)iop->dxfer_len, (trunc ? " [only first 256 bytes shown]" : "")); dStrHex(iop->dxferp, (trunc ? 256 : iop->dxfer_len) , 1); } else snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n"); pout("%s", buff); } memset(&io_hdr_v3, 0, sizeof(struct sg_io_hdr)); memset(&io_hdr_v4, 0, sizeof(struct sg_io_v4)); io_hdr_v3.interface_id = 'S'; io_hdr_v3.cmd_len = iop->cmnd_len; io_hdr_v3.mx_sb_len = iop->max_sense_len; io_hdr_v3.dxfer_len = iop->dxfer_len; io_hdr_v3.dxferp = iop->dxferp; io_hdr_v3.cmdp = iop->cmnd; io_hdr_v3.sbp = iop->sensep; /* sg_io_hdr interface timeout has millisecond units. Timeout of 0 defaults to 60 seconds. */ io_hdr_v3.timeout = ((0 == iop->timeout) ? 60 : iop->timeout) * 1000; io_hdr_v4.guard = 'Q'; io_hdr_v4.request_len = iop->cmnd_len; io_hdr_v4.request = __u64(iop->cmnd); io_hdr_v4.max_response_len = iop->max_sense_len; io_hdr_v4.response = __u64(iop->sensep); io_hdr_v4.timeout = ((0 == iop->timeout) ? 60 : iop->timeout) * 1000; // msec switch (iop->dxfer_dir) { case DXFER_NONE: io_hdr_v3.dxfer_direction = SG_DXFER_NONE; break; case DXFER_FROM_DEVICE: io_hdr_v3.dxfer_direction = SG_DXFER_FROM_DEV; io_hdr_v4.din_xfer_len = iop->dxfer_len; io_hdr_v4.din_xferp = __u64(iop->dxferp); break; case DXFER_TO_DEVICE: io_hdr_v3.dxfer_direction = SG_DXFER_TO_DEV; io_hdr_v4.dout_xfer_len = iop->dxfer_len; io_hdr_v4.dout_xferp = __u64(iop->dxferp); break; default: pout("do_scsi_cmnd_io: bad dxfer_dir\n"); return -EINVAL; } iop->resp_sense_len = 0; iop->scsi_status = 0; iop->resid = 0; void * io_hdr = NULL; switch (sg_io_ver) { case SG_IO_USE_V3: io_hdr = &io_hdr_v3; break; case SG_IO_USE_V4: io_hdr = &io_hdr_v4; break; default: // should never be reached errno = EOPNOTSUPP; return -errno; } if (ioctl(dev_fd, SG_IO, io_hdr) < 0) { if (report) pout(" SG_IO ioctl failed, errno=%d [%s], SG_IO_V%d\n", errno, strerror(errno), sg_io_ver); return -errno; } unsigned int sg_driver_status = 0, sg_transport_status = 0, sg_info = 0, sg_duration = 0; if (sg_io_ver == SG_IO_USE_V3) { iop->resid = io_hdr_v3.resid; iop->scsi_status = io_hdr_v3.status; sg_driver_status = io_hdr_v3.driver_status; sg_transport_status = io_hdr_v3.host_status; sg_info = io_hdr_v3.info; iop->resp_sense_len = io_hdr_v3.sb_len_wr; sg_duration = io_hdr_v3.duration; } if (sg_io_ver == SG_IO_USE_V4) { switch (iop->dxfer_dir) { case DXFER_NONE: iop->resid = 0; break; case DXFER_FROM_DEVICE: iop->resid = io_hdr_v4.din_resid; break; case DXFER_TO_DEVICE: iop->resid = io_hdr_v4.dout_resid; break; } iop->scsi_status = io_hdr_v4.device_status; sg_driver_status = io_hdr_v4.driver_status; sg_transport_status = io_hdr_v4.transport_status; sg_info = io_hdr_v4.info; iop->resp_sense_len = io_hdr_v4.response_len; sg_duration = io_hdr_v4.duration; } if (report > 0) { pout(" scsi_status=0x%x, sg_transport_status=0x%x, sg_driver_status=0x%x\n" " sg_info=0x%x sg_duration=%d milliseconds resid=%d\n", iop->scsi_status, sg_transport_status, sg_driver_status, sg_info, sg_duration, iop->resid); if (report > 1) { if (DXFER_FROM_DEVICE == iop->dxfer_dir) { int trunc, len; len = iop->dxfer_len - iop->resid; trunc = (len > 256) ? 1 : 0; if (len > 0) { pout(" Incoming data, len=%d%s:\n", len, (trunc ? " [only first 256 bytes shown]" : "")); dStrHex(iop->dxferp, (trunc ? 256 : len), 1); } else pout(" Incoming data trimmed to nothing by resid\n"); } } } if (sg_info & SG_INFO_CHECK) { /* error or warning */ int masked_driver_status = (LSCSI_DRIVER_MASK & sg_driver_status); if (0 != sg_transport_status) { if ((LSCSI_DID_NO_CONNECT == sg_transport_status) || (LSCSI_DID_BUS_BUSY == sg_transport_status) || (LSCSI_DID_TIME_OUT == sg_transport_status)) return -ETIMEDOUT; else /* Check for DID_ERROR - workaround for aacraid driver quirk */ if (LSCSI_DID_ERROR != sg_transport_status) { return -EIO; /* catch all if not DID_ERR */ } } if (0 != masked_driver_status) { if (LSCSI_DRIVER_TIMEOUT == masked_driver_status) return -ETIMEDOUT; else if (LSCSI_DRIVER_SENSE != masked_driver_status) return -EIO; } if (LSCSI_DRIVER_SENSE == masked_driver_status) iop->scsi_status = SCSI_STATUS_CHECK_CONDITION; if ((SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) && iop->sensep && (iop->resp_sense_len > 0)) { if (report > 1) { pout(" >>> Sense buffer, len=%d:\n", (int)iop->resp_sense_len); dStrHex(iop->sensep, iop->resp_sense_len , 1); } } if (report) { if (SCSI_STATUS_CHECK_CONDITION == iop->scsi_status && iop->sensep) { if ((iop->sensep[0] & 0x7f) > 0x71) pout(" status=%x: [desc] sense_key=%x asc=%x ascq=%x\n", iop->scsi_status, iop->sensep[1] & 0xf, iop->sensep[2], iop->sensep[3]); else pout(" status=%x: sense_key=%x asc=%x ascq=%x\n", iop->scsi_status, iop->sensep[2] & 0xf, iop->sensep[12], iop->sensep[13]); } else pout(" status=0x%x\n", iop->scsi_status); } } return 0; #endif } struct linux_ioctl_send_command { int inbufsize; int outbufsize; uint8_t buff[MAX_DXFER_LEN + 16]; }; /* The Linux SCSI_IOCTL_SEND_COMMAND ioctl is primitive and it doesn't * support: CDB length (guesses it from opcode), resid and timeout. * Patches in Linux 2.4.21 and 2.5.70 to extend SEND DIAGNOSTIC timeout * to 2 hours in order to allow long foreground extended self tests. */ static int sisc_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report) { struct linux_ioctl_send_command wrk; int status, buff_offset; size_t len; memcpy(wrk.buff, iop->cmnd, iop->cmnd_len); buff_offset = iop->cmnd_len; if (report > 0) { int k, j; const unsigned char * ucp = iop->cmnd; const char * np; char buff[256]; const int sz = (int)sizeof(buff); np = scsi_get_opcode_name(ucp[0]); j = snprintf(buff, sz, " [%s: ", np ? np : ""); for (k = 0; k < (int)iop->cmnd_len; ++k) j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "%02x ", ucp[k]); if ((report > 1) && (DXFER_TO_DEVICE == iop->dxfer_dir)) { int trunc = (iop->dxfer_len > 256) ? 1 : 0; snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n Outgoing " "data, len=%d%s:\n", (int)iop->dxfer_len, (trunc ? " [only first 256 bytes shown]" : "")); dStrHex(iop->dxferp, (trunc ? 256 : iop->dxfer_len) , 1); } else snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n"); pout("%s", buff); } switch (iop->dxfer_dir) { case DXFER_NONE: wrk.inbufsize = 0; wrk.outbufsize = 0; break; case DXFER_FROM_DEVICE: wrk.inbufsize = 0; if (iop->dxfer_len > MAX_DXFER_LEN) return -EINVAL; wrk.outbufsize = iop->dxfer_len; break; case DXFER_TO_DEVICE: if (iop->dxfer_len > MAX_DXFER_LEN) return -EINVAL; memcpy(wrk.buff + buff_offset, iop->dxferp, iop->dxfer_len); wrk.inbufsize = iop->dxfer_len; wrk.outbufsize = 0; break; default: pout("do_scsi_cmnd_io: bad dxfer_dir\n"); return -EINVAL; } iop->resp_sense_len = 0; iop->scsi_status = 0; iop->resid = 0; status = ioctl(dev_fd, SCSI_IOCTL_SEND_COMMAND, &wrk); if (-1 == status) { if (report) pout(" SCSI_IOCTL_SEND_COMMAND ioctl failed, errno=%d [%s]\n", errno, strerror(errno)); return -errno; } if (0 == status) { if (report > 0) pout(" status=0\n"); if (DXFER_FROM_DEVICE == iop->dxfer_dir) { memcpy(iop->dxferp, wrk.buff, iop->dxfer_len); if (report > 1) { int trunc = (iop->dxfer_len > 256) ? 1 : 0; pout(" Incoming data, len=%d%s:\n", (int)iop->dxfer_len, (trunc ? " [only first 256 bytes shown]" : "")); dStrHex(iop->dxferp, (trunc ? 256 : iop->dxfer_len) , 1); } } return 0; } iop->scsi_status = status & 0x7e; /* bits 0 and 7 used to be for vendors */ if (LSCSI_DRIVER_SENSE == ((status >> 24) & 0xf)) iop->scsi_status = SCSI_STATUS_CHECK_CONDITION; len = (SEND_IOCTL_RESP_SENSE_LEN < iop->max_sense_len) ? SEND_IOCTL_RESP_SENSE_LEN : iop->max_sense_len; if ((SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) && iop->sensep && (len > 0)) { memcpy(iop->sensep, wrk.buff, len); iop->resp_sense_len = len; if (report > 1) { pout(" >>> Sense buffer, len=%d:\n", (int)len); dStrHex(wrk.buff, len , 1); } } if (report) { if (SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) { pout(" status=%x: sense_key=%x asc=%x ascq=%x\n", status & 0xff, wrk.buff[2] & 0xf, wrk.buff[12], wrk.buff[13]); } else pout(" status=0x%x\n", status); } if (iop->scsi_status > 0) return 0; else { if (report > 0) pout(" ioctl status=0x%x but scsi status=0, fail with EIO\n", status); return -EIO; /* give up, assume no device there */ } } /* SCSI command transmission interface function, linux version. * Returns 0 if SCSI command successfully launched and response * received. Even when 0 is returned the caller should check * scsi_cmnd_io::scsi_status for SCSI defined errors and warnings * (e.g. CHECK CONDITION). If the SCSI command could not be issued * (e.g. device not present or timeout) or some other problem * (e.g. timeout) then returns a negative errno value */ static int do_normal_scsi_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report) { int res; /* implementation relies on static sg_io_state variable. If not * previously set tries the SG_IO ioctl. If that succeeds assume * that SG_IO ioctl functional. If it fails with an errno value * other than ENODEV (no device) or permission then assume * SCSI_IOCTL_SEND_COMMAND is the only option. */ switch (sg_io_state) { case SG_IO_USE_DETECT: /* ignore report argument */ /* Try SG_IO V3 first */ if (0 == (res = sg_io_cmnd_io(dev_fd, iop, report, SG_IO_USE_V3))) { sg_io_state = SG_IO_USE_V3; return 0; } else if ((-ENODEV == res) || (-EACCES == res) || (-EPERM == res)) return res; /* wait until we see a device */ /* See if we can use SG_IO V4 * */ if (0 == (res = sg_io_cmnd_io(dev_fd, iop, report, SG_IO_USE_V4))) { sg_io_state = SG_IO_USE_V4; return 0; } else if ((-ENODEV == res) || (-EACCES == res) || (-EPERM == res)) return res; /* wait until we see a device */ /* fallback to the SCSI_IOCTL_SEND_COMMAND */ sg_io_state = SG_IO_UNSUPP; /* FALLTHRU */ case SG_IO_UNSUPP: /* deprecated SCSI_IOCTL_SEND_COMMAND ioctl */ return sisc_cmnd_io(dev_fd, iop, report); case SG_IO_USE_V3: case SG_IO_USE_V4: /* use SG_IO V3 or V4 ioctl, depending on availabiliy */ return sg_io_cmnd_io(dev_fd, iop, report, sg_io_state); default: pout(">>>> do_scsi_cmnd_io: bad sg_io_state=%d\n", sg_io_state); sg_io_state = SG_IO_USE_DETECT; return -EIO; /* report error and reset state */ } } // >>>>>> End of general SCSI specific linux code ///////////////////////////////////////////////////////////////////////////// /// Standard SCSI support class linux_scsi_device : public /*implements*/ scsi_device, public /*extends*/ linux_smart_device { public: linux_scsi_device(smart_interface * intf, const char * dev_name, const char * req_type, bool scanning = false); virtual smart_device * autodetect_open() override; virtual bool scsi_pass_through(scsi_cmnd_io * iop) override; private: bool m_scanning; ///< true if created within scan_smart_devices }; linux_scsi_device::linux_scsi_device(smart_interface * intf, const char * dev_name, const char * req_type, bool scanning /*= false*/) : smart_device(intf, dev_name, "scsi", req_type), // If opened with O_RDWR, a SATA disk in standby mode // may spin-up after device close(). linux_smart_device(O_RDONLY | O_NONBLOCK), m_scanning(scanning) { } bool linux_scsi_device::scsi_pass_through(scsi_cmnd_io * iop) { int status = do_normal_scsi_cmnd_io(get_fd(), iop, scsi_debugmode); if (status < 0) return set_err(-status); return true; } ///////////////////////////////////////////////////////////////////////////// /// PMC AacRAID support class linux_aacraid_device :public scsi_device, public /*extends */ linux_smart_device { public: linux_aacraid_device(smart_interface *intf, const char *dev_name, unsigned int host, unsigned int channel, unsigned int device); virtual ~linux_aacraid_device(); virtual bool open() override; virtual bool scsi_pass_through(scsi_cmnd_io *iop) override; private: //Device Host number int aHost; //Channel(Lun) of the device int aLun; //Id of the device int aId; }; linux_aacraid_device::linux_aacraid_device(smart_interface *intf, const char *dev_name, unsigned int host, unsigned int channel, unsigned int device) : smart_device(intf,dev_name,"aacraid","aacraid"), linux_smart_device(O_RDWR|O_NONBLOCK), aHost(host), aLun(channel), aId(device) { set_info().info_name = strprintf("%s [aacraid_disk_%02d_%02d_%d]",dev_name,aHost,aLun,aId); set_info().dev_type = strprintf("aacraid,%d,%d,%d",aHost,aLun,aId); } linux_aacraid_device::~linux_aacraid_device() { } bool linux_aacraid_device::open() { //Create the character device name based on the host number //Required for get stats from disks connected to different controllers char dev_name[128]; snprintf(dev_name, sizeof(dev_name), "/dev/aac%d", aHost); //Initial open of dev name to check if it exsists int afd = ::open(dev_name,O_RDWR); if(afd < 0 && errno == ENOENT) { FILE *fp = fopen("/proc/devices","r"); if(NULL == fp) return set_err(errno,"cannot open /proc/devices:%s", strerror(errno)); char line[256]; int mjr = -1; while(fgets(line,sizeof(line),fp) !=NULL) { int nc = -1; if(sscanf(line,"%d aac%n",&mjr,&nc) == 1 && nc > 0 && '\n' == line[nc]) break; mjr = -1; } //work with /proc/devices is done fclose(fp); if (mjr < 0) return set_err(ENOENT, "aac entry not found in /proc/devices"); //Create misc device file in /dev/ used for communication with driver if(mknod(dev_name, S_IFCHR|0600, makedev(mjr,aHost))) return set_err(errno,"cannot create %s:%s",dev_name,strerror(errno)); afd = ::open(dev_name,O_RDWR); } if(afd < 0) return set_err(errno,"cannot open %s:%s",dev_name,strerror(errno)); set_fd(afd); return true; } bool linux_aacraid_device::scsi_pass_through(scsi_cmnd_io *iop) { int report = scsi_debugmode; if (report > 0) { int k, j; const unsigned char * ucp = iop->cmnd; const char * np; char buff[256]; const int sz = (int)sizeof(buff); np = scsi_get_opcode_name(ucp[0]); j = snprintf(buff, sz, " [%s: ", np ? np : ""); for (k = 0; k < (int)iop->cmnd_len; ++k) j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "%02x ", ucp[k]); if ((report > 1) && (DXFER_TO_DEVICE == iop->dxfer_dir) && (iop->dxferp)) { int trunc = (iop->dxfer_len > 256) ? 1 : 0; snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n Outgoing " "data, len=%d%s:\n", (int)iop->dxfer_len, (trunc ? " [only first 256 bytes shown]" : "")); dStrHex(iop->dxferp, (trunc ? 256 : iop->dxfer_len) , 1); } else snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n"); pout("%s", buff); } //return test commands if (iop->cmnd[0] == 0x00) return true; user_aac_reply *pReply; #ifdef ENVIRONMENT64 // Create user 64 bit request user_aac_srb64 *pSrb; uint8_t aBuff[sizeof(user_aac_srb64) + sizeof(user_aac_reply)] = {0,}; pSrb = (user_aac_srb64*)aBuff; pSrb->count = sizeof(user_aac_srb64) - sizeof(user_sgentry64); #elif defined(ENVIRONMENT32) //Create user 32 bit request user_aac_srb32 *pSrb; uint8_t aBuff[sizeof(user_aac_srb32) + sizeof(user_aac_reply)] = {0,}; pSrb = (user_aac_srb32*)aBuff; pSrb->count = sizeof(user_aac_srb32) - sizeof(user_sgentry32); #endif pSrb->function = SRB_FUNCTION_EXECUTE_SCSI; //channel is 0 always pSrb->channel = 0; pSrb->id = aId; pSrb->lun = aLun; pSrb->timeout = 0; pSrb->retry_limit = 0; pSrb->cdb_size = iop->cmnd_len; switch(iop->dxfer_dir) { case DXFER_NONE: pSrb->flags = SRB_NoDataXfer; break; case DXFER_FROM_DEVICE: pSrb->flags = SRB_DataIn; break; case DXFER_TO_DEVICE: pSrb->flags = SRB_DataOut; break; default: pout("aacraid: bad dxfer_dir\n"); return set_err(EINVAL, "aacraid: bad dxfer_dir\n"); } if(iop->dxfer_len > 0) { #ifdef ENVIRONMENT64 pSrb->sg64.count = 1; pSrb->sg64.sg64[0].addr64.lo32 = ((intptr_t)iop->dxferp) & 0x00000000ffffffff; pSrb->sg64.sg64[0].addr64.hi32 = ((intptr_t)iop->dxferp) >> 32; pSrb->sg64.sg64[0].length = (uint32_t)iop->dxfer_len; pSrb->count += pSrb->sg64.count * sizeof(user_sgentry64); #elif defined(ENVIRONMENT32) pSrb->sg32.count = 1; pSrb->sg32.sg32[0].addr32 = (intptr_t)iop->dxferp; pSrb->sg32.sg32[0].length = (uint32_t)iop->dxfer_len; pSrb->count += pSrb->sg32.count * sizeof(user_sgentry32); #endif } pReply = (user_aac_reply*)(aBuff+pSrb->count); memcpy(pSrb->cdb,iop->cmnd,iop->cmnd_len); int rc = 0; errno = 0; rc = ioctl(get_fd(),FSACTL_SEND_RAW_SRB,pSrb); if (rc != 0) return set_err(errno, "aacraid send_raw_srb: %d.%d = %s", aLun, aId, strerror(errno)); /* see kernel aacraid.h and MSDN SCSI_REQUEST_BLOCK documentation */ #define SRB_STATUS_SUCCESS 0x1 #define SRB_STATUS_ERROR 0x4 #define SRB_STATUS_NO_DEVICE 0x08 #define SRB_STATUS_SELECTION_TIMEOUT 0x0a #define SRB_STATUS_AUTOSENSE_VALID 0x80 iop->scsi_status = pReply->scsi_status; if (pReply->srb_status == (SRB_STATUS_AUTOSENSE_VALID | SRB_STATUS_ERROR) && iop->scsi_status == SCSI_STATUS_CHECK_CONDITION) { memcpy(iop->sensep, pReply->sense_data, pReply->sense_data_size); iop->resp_sense_len = pReply->sense_data_size; return true; /* request completed with sense data */ } switch (pReply->srb_status & 0x3f) { case SRB_STATUS_SUCCESS: return true; /* request completed successfully */ case SRB_STATUS_NO_DEVICE: return set_err(EIO, "aacraid: Device %d %d does not exist", aLun, aId); case SRB_STATUS_SELECTION_TIMEOUT: return set_err(EIO, "aacraid: Device %d %d not responding", aLun, aId); default: return set_err(EIO, "aacraid result: %d.%d = 0x%x", aLun, aId, pReply->srb_status); } } ///////////////////////////////////////////////////////////////////////////// /// LSI MegaRAID support class linux_megaraid_device : public /* implements */ scsi_device, public /* extends */ linux_smart_device { public: linux_megaraid_device(smart_interface *intf, const char *name, unsigned int tgt); virtual ~linux_megaraid_device(); virtual smart_device * autodetect_open() override; virtual bool open() override; virtual bool close() override; virtual bool scsi_pass_through(scsi_cmnd_io *iop) override; private: unsigned int m_disknum; unsigned int m_hba; int m_fd; bool (linux_megaraid_device::*pt_cmd)(int cdblen, void *cdb, int dataLen, void *data, int senseLen, void *sense, int report, int direction); bool megasas_cmd(int cdbLen, void *cdb, int dataLen, void *data, int senseLen, void *sense, int report, int direction); bool megadev_cmd(int cdbLen, void *cdb, int dataLen, void *data, int senseLen, void *sense, int report, int direction); }; linux_megaraid_device::linux_megaraid_device(smart_interface *intf, const char *dev_name, unsigned int tgt) : smart_device(intf, dev_name, "megaraid", "megaraid"), linux_smart_device(O_RDWR | O_NONBLOCK), m_disknum(tgt), m_hba(0), m_fd(-1), pt_cmd(0) { set_info().info_name = strprintf("%s [megaraid_disk_%02d]", dev_name, m_disknum); set_info().dev_type = strprintf("megaraid,%d", tgt); } linux_megaraid_device::~linux_megaraid_device() { if (m_fd >= 0) ::close(m_fd); } smart_device * linux_megaraid_device::autodetect_open() { int report = scsi_debugmode; // Open device if (!open()) return this; // The code below is based on smartd.cpp:SCSIFilterKnown() if (strcmp(get_req_type(), "megaraid")) return this; // Get INQUIRY unsigned char req_buff[64] = {0, }; int req_len = 36; if (scsiStdInquiry(this, req_buff, req_len)) { close(); set_err(EIO, "INQUIRY failed"); return this; } int avail_len = req_buff[4] + 5; int len = (avail_len < req_len ? avail_len : req_len); if (len < 36) return this; if (report) pout("Got MegaRAID inquiry.. %s\n", req_buff+8); // Use INQUIRY to detect type { // SAT? ata_device * newdev = smi()->autodetect_sat_device(this, req_buff, len); if (newdev) // NOTE: 'this' is now owned by '*newdev' return newdev; } // Nothing special found return this; } bool linux_megaraid_device::open() { int mjr; int report = scsi_debugmode; if (sscanf(get_dev_name(), "/dev/bus/%u", &m_hba) == 0) { if (!linux_smart_device::open()) return false; /* Get device HBA */ struct sg_scsi_id sgid; if (ioctl(get_fd(), SG_GET_SCSI_ID, &sgid) == 0) { m_hba = sgid.host_no; } else if (ioctl(get_fd(), SCSI_IOCTL_GET_BUS_NUMBER, &m_hba) != 0) { int err = errno; linux_smart_device::close(); return set_err(err, "can't get bus number"); } // we don't need this device anymore linux_smart_device::close(); } /* Perform mknod of device ioctl node */ FILE * fp = fopen("/proc/devices", "r"); if (fp) { char line[128]; while (fgets(line, sizeof(line), fp) != NULL) { int n1 = 0; if (sscanf(line, "%d megaraid_sas_ioctl%n", &mjr, &n1) == 1 && n1 == 22) { n1=mknod("/dev/megaraid_sas_ioctl_node", S_IFCHR|0600, makedev(mjr, 0)); if(report > 0) pout("Creating /dev/megaraid_sas_ioctl_node = %d\n", n1 >= 0 ? 0 : errno); if (n1 >= 0 || errno == EEXIST) break; } else if (sscanf(line, "%d megadev%n", &mjr, &n1) == 1 && n1 == 11) { n1=mknod("/dev/megadev0", S_IFCHR|0600, makedev(mjr, 0)); if(report > 0) pout("Creating /dev/megadev0 = %d\n", n1 >= 0 ? 0 : errno); if (n1 >= 0 || errno == EEXIST) break; } } fclose(fp); } /* Open Device IOCTL node */ if ((m_fd = ::open("/dev/megaraid_sas_ioctl_node", O_RDWR)) >= 0) { pt_cmd = &linux_megaraid_device::megasas_cmd; } else if ((m_fd = ::open("/dev/megadev0", O_RDWR)) >= 0) { pt_cmd = &linux_megaraid_device::megadev_cmd; } else { int err = errno; linux_smart_device::close(); return set_err(err, "cannot open /dev/megaraid_sas_ioctl_node or /dev/megadev0"); } set_fd(m_fd); return true; } bool linux_megaraid_device::close() { if (m_fd >= 0) ::close(m_fd); m_fd = -1; m_hba = 0; pt_cmd = 0; set_fd(m_fd); return true; } bool linux_megaraid_device::scsi_pass_through(scsi_cmnd_io *iop) { int report = scsi_debugmode; if (report > 0) { int k, j; const unsigned char * ucp = iop->cmnd; const char * np; char buff[256]; const int sz = (int)sizeof(buff); np = scsi_get_opcode_name(ucp[0]); j = snprintf(buff, sz, " [%s: ", np ? np : ""); for (k = 0; k < (int)iop->cmnd_len; ++k) j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "%02x ", ucp[k]); if ((report > 1) && (DXFER_TO_DEVICE == iop->dxfer_dir) && (iop->dxferp)) { int trunc = (iop->dxfer_len > 256) ? 1 : 0; snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n Outgoing " "data, len=%d%s:\n", (int)iop->dxfer_len, (trunc ? " [only first 256 bytes shown]" : "")); dStrHex(iop->dxferp, (trunc ? 256 : iop->dxfer_len) , 1); } else snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n"); pout("%s", buff); } // Controller rejects Test Unit Ready if (iop->cmnd[0] == 0x00) return true; if (iop->cmnd[0] == SAT_ATA_PASSTHROUGH_12 || iop->cmnd[0] == SAT_ATA_PASSTHROUGH_16) { // Controller does not return ATA output registers in SAT sense data if (iop->cmnd[2] & (1 << 5)) // chk_cond return set_err(ENOSYS, "ATA return descriptor not supported by controller firmware"); } // SMART WRITE LOG SECTOR causing media errors if ((iop->cmnd[0] == SAT_ATA_PASSTHROUGH_16 // SAT16 WRITE LOG && iop->cmnd[14] == ATA_SMART_CMD && iop->cmnd[3]==0 && iop->cmnd[4] == ATA_SMART_WRITE_LOG_SECTOR) || (iop->cmnd[0] == SAT_ATA_PASSTHROUGH_12 // SAT12 WRITE LOG && iop->cmnd[9] == ATA_SMART_CMD && iop->cmnd[3] == ATA_SMART_WRITE_LOG_SECTOR)) { if(!failuretest_permissive) return set_err(ENOSYS, "SMART WRITE LOG SECTOR may cause problems, try with -T permissive to force"); } if (pt_cmd == NULL) return false; return (this->*pt_cmd)(iop->cmnd_len, iop->cmnd, iop->dxfer_len, iop->dxferp, iop->max_sense_len, iop->sensep, report, iop->dxfer_dir); } /* Issue passthrough scsi command to PERC5/6 controllers */ bool linux_megaraid_device::megasas_cmd(int cdbLen, void *cdb, int dataLen, void *data, int /*senseLen*/, void * /*sense*/, int /*report*/, int dxfer_dir) { struct megasas_pthru_frame *pthru; struct megasas_iocpacket uio; memset(&uio, 0, sizeof(uio)); pthru = &uio.frame.pthru; pthru->cmd = MFI_CMD_PD_SCSI_IO; pthru->cmd_status = 0xFF; pthru->scsi_status = 0x0; pthru->target_id = m_disknum; pthru->lun = 0; pthru->cdb_len = cdbLen; pthru->timeout = 0; switch (dxfer_dir) { case DXFER_NONE: pthru->flags = MFI_FRAME_DIR_NONE; break; case DXFER_FROM_DEVICE: pthru->flags = MFI_FRAME_DIR_READ; break; case DXFER_TO_DEVICE: pthru->flags = MFI_FRAME_DIR_WRITE; break; default: pout("megasas_cmd: bad dxfer_dir\n"); return set_err(EINVAL, "megasas_cmd: bad dxfer_dir\n"); } if (dataLen > 0) { pthru->sge_count = 1; pthru->data_xfer_len = dataLen; pthru->sgl.sge32[0].phys_addr = (intptr_t)data; pthru->sgl.sge32[0].length = (uint32_t)dataLen; } memcpy(pthru->cdb, cdb, cdbLen); uio.host_no = m_hba; if (dataLen > 0) { uio.sge_count = 1; uio.sgl_off = offsetof(struct megasas_pthru_frame, sgl); uio.sgl[0].iov_base = data; uio.sgl[0].iov_len = dataLen; } errno = 0; int rc = ioctl(m_fd, MEGASAS_IOC_FIRMWARE, &uio); if (pthru->cmd_status || rc != 0) { if (pthru->cmd_status == 12) { return set_err(EIO, "megasas_cmd: Device %d does not exist\n", m_disknum); } return set_err((errno ? errno : EIO), "megasas_cmd result: %d.%d = %d/%d", m_hba, m_disknum, errno, pthru->cmd_status); } return true; } /* Issue passthrough scsi commands to PERC2/3/4 controllers */ bool linux_megaraid_device::megadev_cmd(int cdbLen, void *cdb, int dataLen, void *data, int /*senseLen*/, void * /*sense*/, int /*report*/, int /* dir */) { struct uioctl_t uio; int rc; /* Don't issue to the controller */ if (m_disknum == 7) return false; memset(&uio, 0, sizeof(uio)); uio.inlen = dataLen; uio.outlen = dataLen; memset(data, 0, dataLen); uio.ui.fcs.opcode = 0x80; // M_RD_IOCTL_CMD uio.ui.fcs.adapno = MKADAP(m_hba); uio.data.pointer = (uint8_t *)data; uio.mbox.cmd = MEGA_MBOXCMD_PASSTHRU; uio.mbox.xferaddr = (intptr_t)&uio.pthru; uio.pthru.ars = 1; uio.pthru.timeout = 2; uio.pthru.channel = 0; uio.pthru.target = m_disknum; uio.pthru.cdblen = cdbLen; uio.pthru.reqsenselen = MAX_REQ_SENSE_LEN; uio.pthru.dataxferaddr = (intptr_t)data; uio.pthru.dataxferlen = dataLen; memcpy(uio.pthru.cdb, cdb, cdbLen); rc=ioctl(m_fd, MEGAIOCCMD, &uio); if (uio.pthru.scsistatus || rc != 0) { return set_err((errno ? errno : EIO), "megadev_cmd result: %d.%d = %d/%d", m_hba, m_disknum, errno, uio.pthru.scsistatus); } return true; } ///////////////////////////////////////////////////////////////////////////// /// 3SNIC RAID support class linux_sssraid_device : public /* implements */ scsi_device, public /* extends */ linux_smart_device { public: linux_sssraid_device(smart_interface *intf, const char *name, unsigned int eid, unsigned int sid); virtual ~linux_sssraid_device(); virtual smart_device * autodetect_open() override; virtual bool open() override; virtual bool close() override; virtual bool scsi_pass_through(scsi_cmnd_io *iop) override; private: unsigned int eid; unsigned int sid; unsigned int did; unsigned int m_hba; int m_fd; bool scsi_cmd(int cdbLen, void *cdb, int dataLen, void *data, int direction); }; linux_sssraid_device::linux_sssraid_device(smart_interface *intf, const char *dev_name, unsigned int eid, unsigned int sid) : smart_device(intf, dev_name, "sssraid", "sssraid"), linux_smart_device(O_RDWR | O_NONBLOCK), eid(eid), sid(sid), m_hba(0), m_fd(-1) { set_info().info_name = strprintf("%s [sssraid_disk_%02d_%02d]", dev_name, eid, sid); set_info().dev_type = strprintf("sssraid,%d,%d", eid, sid); } linux_sssraid_device::~linux_sssraid_device() { if (m_fd >= 0) ::close(m_fd); } smart_device * linux_sssraid_device::autodetect_open() { int report = scsi_debugmode; // Open device if (!open()) return this; // The code below is based on smartd.cpp:SCSIFilterKnown() if (strcmp(get_req_type(), "sssraid")) return this; // Get INQUIRY unsigned char req_buff[64] = {0, }; int req_len = 36; if (scsiStdInquiry(this, req_buff, req_len)) { close(); set_err(EIO, "INQUIRY failed"); return this; } int avail_len = req_buff[4] + 5; int len = (avail_len < req_len ? avail_len : req_len); if (len < 36) return this; if (report) pout("Got SSSRAID inquiry.. %s\n", req_buff+8); // Use INQUIRY to detect type { // SAT? ata_device * newdev = smi()->autodetect_sat_device(this, req_buff, len); if (newdev) // NOTE: 'this' is now owned by '*newdev' return newdev; } // Nothing special found return this; } bool linux_sssraid_device::open() { int report = scsi_debugmode; if (sscanf(get_dev_name(), "/dev/bsg/sssraid%u", &m_hba) == 0) { if (!linux_smart_device::open()) return false; linux_smart_device::close(); } /* Open Device IOCTL node */ if ((m_fd = ::open(get_dev_name(), O_RDWR)) < 0) { int err = errno; linux_smart_device::close(); return set_err(err, "cannot open %s", get_dev_name()); } set_fd(m_fd); return true; } bool linux_sssraid_device::close() { if (m_fd >= 0) ::close(m_fd); m_fd = -1; m_hba = 0; set_fd(m_fd); return true; } bool linux_sssraid_device::scsi_pass_through(scsi_cmnd_io *iop) { int report = scsi_debugmode; if (report > 0) { int k, j; const unsigned char * ucp = iop->cmnd; const char * np; char buff[256]; const int sz = (int)sizeof(buff); np = scsi_get_opcode_name(ucp[0]); j = snprintf(buff, sz, " [%s: ", np ? np : ""); for (k = 0; k < (int)iop->cmnd_len; ++k) j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "%02x ", ucp[k]); if ((report > 1) && (DXFER_TO_DEVICE == iop->dxfer_dir) && (iop->dxferp)) { int trunc = (iop->dxfer_len > 256) ? 1 : 0; snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n Outgoing " "data, len=%d%s:\n", (int)iop->dxfer_len, (trunc ? " [only first 256 bytes shown]" : "")); dStrHex(iop->dxferp, (trunc ? 256 : iop->dxfer_len) , 1); } else snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n"); pout("%s", buff); } bool r = scsi_cmd(iop->cmnd_len, iop->cmnd, iop->dxfer_len, iop->dxferp, iop->dxfer_dir); return r; } /* Issue passthrough scsi commands to sssraid controllers */ bool linux_sssraid_device::scsi_cmd(int cdbLen, void *cdb, int dataLen, void *data, int dxfer_dir) { struct sg_io_v4 io_hdr_v4 = { 0 }; struct cmd_scsi_passthrough scsi_param = { 0 }; unsigned char sense_buff[96] = { 0 }; struct bsg_ioctl_cmd bsg_param = { 0 }; scsi_param.sense_buffer = sense_buff; scsi_param.sense_buffer_len = 96; scsi_param.cdb_len = cdbLen; memcpy(scsi_param.cdb, cdb, cdbLen); scsi_param.loc.enc_id = eid; scsi_param.loc.slot_id = sid; io_hdr_v4.guard = 'Q'; io_hdr_v4.protocol = BSG_PROTOCOL_SCSI; io_hdr_v4.subprotocol = BSG_SUB_PROTOCOL_SCSI_TRANSPORT; io_hdr_v4.response = (uintptr_t)sense_buff; io_hdr_v4.max_response_len = ADM_SCSI_CDB_SENSE_MAX_LEN; io_hdr_v4.request_len = sizeof(struct bsg_ioctl_cmd); io_hdr_v4.request = (uintptr_t)(&bsg_param); io_hdr_v4.timeout = BSG_APPEND_TIMEOUT_MS; switch (dxfer_dir) { case DXFER_NONE: case DXFER_FROM_DEVICE: io_hdr_v4.din_xferp = (uintptr_t)data; io_hdr_v4.din_xfer_len = dataLen; bsg_param.ioctl_pthru.opcode = ADM_RAID_READ; break; case DXFER_TO_DEVICE: io_hdr_v4.dout_xferp = (uintptr_t)data; io_hdr_v4.dout_xfer_len = dataLen; bsg_param.ioctl_pthru.opcode = ADM_RAID_WRITE; break; default: pout("scsi_cmd: bad dxfer_dir\n"); return set_err(EINVAL, "scsi_cmd: bad dxfer_dir\n"); } bsg_param.msgcode = ADM_BSG_MSGCODE_SCSI_PTHRU; bsg_param.ioctl_pthru.timeout_ms = BSG_APPEND_TIMEOUT_MS; bsg_param.ioctl_pthru.info_1.subopcode = ADM_CMD_SCSI_PASSTHROUGH; bsg_param.ioctl_pthru.addr = (uintptr_t)data; bsg_param.ioctl_pthru.data_len = dataLen; bsg_param.ioctl_pthru.info_0.cdb_len = scsi_param.cdb_len; bsg_param.ioctl_pthru.sense_addr = (uintptr_t)scsi_param.sense_buffer; bsg_param.ioctl_pthru.info_0.res_sense_len = scsi_param.sense_buffer_len; io_hdr_v4.response = (uintptr_t)scsi_param.sense_buffer; io_hdr_v4.response_len = scsi_param.sense_buffer_len; bsg_param.ioctl_pthru.info_3.eid = scsi_param.loc.enc_id; bsg_param.ioctl_pthru.info_3.sid = scsi_param.loc.slot_id; bsg_param.ioctl_pthru.info_4.did = scsi_param.loc.did; bsg_param.ioctl_pthru.info_4.did_flag = scsi_param.loc.flag; memcpy(&bsg_param.ioctl_pthru.cdw16, scsi_param.cdb, scsi_param.cdb_len); int r = ioctl(m_fd, SG_IO, &io_hdr_v4); if (r < 0) { return (r); } return true; } ///////////////////////////////////////////////////////////////////////////// /// CCISS RAID support #ifdef HAVE_LINUX_CCISS_IOCTL_H class linux_cciss_device : public /*implements*/ scsi_device, public /*extends*/ linux_smart_device { public: linux_cciss_device(smart_interface * intf, const char * name, unsigned char disknum); virtual bool scsi_pass_through(scsi_cmnd_io * iop) override; private: unsigned char m_disknum; ///< Disk number. }; linux_cciss_device::linux_cciss_device(smart_interface * intf, const char * dev_name, unsigned char disknum) : smart_device(intf, dev_name, "cciss", "cciss"), linux_smart_device(O_RDWR | O_NONBLOCK), m_disknum(disknum) { set_info().info_name = strprintf("%s [cciss_disk_%02d]", dev_name, disknum); } bool linux_cciss_device::scsi_pass_through(scsi_cmnd_io * iop) { int status = cciss_io_interface(get_fd(), m_disknum, iop, scsi_debugmode); if (status < 0) return set_err(-status); return true; } #endif // HAVE_LINUX_CCISS_IOCTL_H ///////////////////////////////////////////////////////////////////////////// /// AMCC/3ware RAID support class linux_escalade_device : public /*implements*/ ata_device, public /*extends*/ linux_smart_device { public: enum escalade_type_t { AMCC_3WARE_678K, AMCC_3WARE_678K_CHAR, AMCC_3WARE_9000_CHAR, AMCC_3WARE_9700_CHAR }; linux_escalade_device(smart_interface * intf, const char * dev_name, escalade_type_t escalade_type, int disknum); virtual bool open() override; virtual bool ata_pass_through(const ata_cmd_in & in, ata_cmd_out & out) override; private: escalade_type_t m_escalade_type; ///< Controller type int m_disknum; ///< Disk number. }; linux_escalade_device::linux_escalade_device(smart_interface * intf, const char * dev_name, escalade_type_t escalade_type, int disknum) : smart_device(intf, dev_name, "3ware", "3ware"), linux_smart_device(O_RDONLY | O_NONBLOCK), m_escalade_type(escalade_type), m_disknum(disknum) { set_info().info_name = strprintf("%s [3ware_disk_%02d]", dev_name, disknum); } /* This function will setup and fix device nodes for a 3ware controller. */ #define MAJOR_STRING_LENGTH 3 #define DEVICE_STRING_LENGTH 32 #define NODE_STRING_LENGTH 16 static int setup_3ware_nodes(const char *nodename, const char *driver_name) { int tw_major = 0; int index = 0; char majorstring[MAJOR_STRING_LENGTH+1]; char device_name[DEVICE_STRING_LENGTH+1]; char nodestring[NODE_STRING_LENGTH]; struct stat stat_buf; FILE *file; int retval = 0; #ifdef HAVE_LIBSELINUX security_context_t orig_context = NULL; security_context_t node_context = NULL; int selinux_enabled = is_selinux_enabled(); int selinux_enforced = security_getenforce(); #endif /* First try to open up /proc/devices */ if (!(file = fopen("/proc/devices", "r"))) { pout("Error opening /proc/devices to check/create 3ware device nodes\n"); syserror("fopen"); return 0; // don't fail here: user might not have /proc ! } /* Attempt to get device major number */ while (EOF != fscanf(file, "%3s %32s", majorstring, device_name)) { majorstring[MAJOR_STRING_LENGTH]='\0'; device_name[DEVICE_STRING_LENGTH]='\0'; if (!strncmp(device_name, nodename, DEVICE_STRING_LENGTH)) { tw_major = atoi(majorstring); break; } } fclose(file); /* See if we found a major device number */ if (!tw_major) { pout("No major number for /dev/%s listed in /proc/devices. Is the %s driver loaded?\n", nodename, driver_name); return 2; } #ifdef HAVE_LIBSELINUX /* Prepare a database of contexts for files in /dev * and save the current context */ if (selinux_enabled) { if (matchpathcon_init_prefix(NULL, "/dev") < 0) pout("Error initializing contexts database for /dev"); if (getfscreatecon(&orig_context) < 0) { pout("Error retrieving original SELinux fscreate context"); if (selinux_enforced) { matchpathcon_fini(); return 6; } } } #endif /* Now check if nodes are correct */ for (index=0; index<16; index++) { snprintf(nodestring, sizeof(nodestring), "/dev/%s%d", nodename, index); #ifdef HAVE_LIBSELINUX /* Get context of the node and set it as the default */ if (selinux_enabled) { if (matchpathcon(nodestring, S_IRUSR | S_IWUSR, &node_context) < 0) { pout("Could not retrieve context for %s", nodestring); if (selinux_enforced) { retval = 6; break; } } if (setfscreatecon(node_context) < 0) { pout ("Error setting default fscreate context"); if (selinux_enforced) { retval = 6; break; } } } #endif /* Try to stat the node */ if ((stat(nodestring, &stat_buf))) { pout("Node %s does not exist and must be created. Check the udev rules.\n", nodestring); /* Create a new node if it doesn't exist */ if (mknod(nodestring, S_IFCHR|0600, makedev(tw_major, index))) { pout("problem creating 3ware device nodes %s", nodestring); syserror("mknod"); retval = 3; break; } else { #ifdef HAVE_LIBSELINUX if (selinux_enabled && node_context) { freecon(node_context); node_context = NULL; } #endif continue; } } /* See if nodes major and minor numbers are correct */ if ((tw_major != (int)(major(stat_buf.st_rdev))) || (index != (int)(minor(stat_buf.st_rdev))) || (!S_ISCHR(stat_buf.st_mode))) { pout("Node %s has wrong major/minor number and must be created anew." " Check the udev rules.\n", nodestring); /* Delete the old node */ if (unlink(nodestring)) { pout("problem unlinking stale 3ware device node %s", nodestring); syserror("unlink"); retval = 4; break; } /* Make a new node */ if (mknod(nodestring, S_IFCHR|0600, makedev(tw_major, index))) { pout("problem creating 3ware device nodes %s", nodestring); syserror("mknod"); retval = 5; break; } } #ifdef HAVE_LIBSELINUX if (selinux_enabled && node_context) { freecon(node_context); node_context = NULL; } #endif } #ifdef HAVE_LIBSELINUX if (selinux_enabled) { if(setfscreatecon(orig_context) < 0) { pout("Error re-setting original fscreate context"); if (selinux_enforced) retval = 6; } if(orig_context) freecon(orig_context); if(node_context) freecon(node_context); matchpathcon_fini(); } #endif return retval; } bool linux_escalade_device::open() { if (m_escalade_type == AMCC_3WARE_9700_CHAR || m_escalade_type == AMCC_3WARE_9000_CHAR || m_escalade_type == AMCC_3WARE_678K_CHAR) { // the device nodes for these controllers are dynamically assigned, // so we need to check that they exist with the correct major // numbers and if not, create them const char * node = (m_escalade_type == AMCC_3WARE_9700_CHAR ? "twl" : m_escalade_type == AMCC_3WARE_9000_CHAR ? "twa" : "twe" ); const char * driver = (m_escalade_type == AMCC_3WARE_9700_CHAR ? "3w-sas" : m_escalade_type == AMCC_3WARE_9000_CHAR ? "3w-9xxx" : "3w-xxxx" ); if (setup_3ware_nodes(node, driver)) return set_err((errno ? errno : ENXIO), "setup_3ware_nodes(\"%s\", \"%s\") failed", node, driver); } // Continue with default open return linux_smart_device::open(); } // TODO: Function no longer useful //void printwarning(smart_command_set command); // PURPOSE // This is an interface routine meant to isolate the OS dependent // parts of the code, and to provide a debugging interface. Each // different port and OS needs to provide it's own interface. This // is the linux interface to the 3ware 3w-xxxx driver. It allows ATA // commands to be passed through the SCSI driver. // DETAILED DESCRIPTION OF ARGUMENTS // fd: is the file descriptor provided by open() // disknum is the disk number (0 to 15) in the RAID array // escalade_type indicates the type of controller type, and if scsi or char interface is used // command: defines the different operations. // select: additional input data if needed (which log, which type of // self-test). // data: location to write output data, if needed (512 bytes). // Note: not all commands use all arguments. // RETURN VALUES // -1 if the command failed // 0 if the command succeeded, // STATUS_CHECK routine: // -1 if the command failed // 0 if the command succeeded and disk SMART status is "OK" // 1 if the command succeeded and disk SMART status is "FAILING" /* 512 is the max payload size: increase if needed */ #define BUFFER_LEN_678K ( sizeof(TW_Ioctl) ) // 1044 unpacked, 1041 packed #define BUFFER_LEN_678K_CHAR ( sizeof(TW_New_Ioctl)+512-1 ) // 1539 unpacked, 1536 packed #define BUFFER_LEN_9000 ( sizeof(TW_Ioctl_Buf_Apache)+512-1 ) // 2051 unpacked, 2048 packed #define TW_IOCTL_BUFFER_SIZE ( MAX(MAX(BUFFER_LEN_678K, BUFFER_LEN_9000), BUFFER_LEN_678K_CHAR) ) bool linux_escalade_device::ata_pass_through(const ata_cmd_in & in, ata_cmd_out & out) { if (!ata_cmd_is_ok(in, true, // data_out_support false, // TODO: multi_sector_support true) // ata_48bit_support ) return false; // Used by both the SCSI and char interfaces TW_Passthru *passthru=NULL; char ioctl_buffer[TW_IOCTL_BUFFER_SIZE]; // only used for SCSI device interface TW_Ioctl *tw_ioctl=NULL; TW_Output *tw_output=NULL; // only used for 6000/7000/8000 char device interface TW_New_Ioctl *tw_ioctl_char=NULL; // only used for 9000 character device interface TW_Ioctl_Buf_Apache *tw_ioctl_apache=NULL; memset(ioctl_buffer, 0, TW_IOCTL_BUFFER_SIZE); // TODO: Handle controller differences by different classes if (m_escalade_type == AMCC_3WARE_9700_CHAR || m_escalade_type == AMCC_3WARE_9000_CHAR) { tw_ioctl_apache = (TW_Ioctl_Buf_Apache *)ioctl_buffer; tw_ioctl_apache->driver_command.control_code = TW_IOCTL_FIRMWARE_PASS_THROUGH; tw_ioctl_apache->driver_command.buffer_length = 512; /* payload size */ passthru = (TW_Passthru *)&(tw_ioctl_apache->firmware_command.command.oldcommand); } else if (m_escalade_type==AMCC_3WARE_678K_CHAR) { tw_ioctl_char = (TW_New_Ioctl *)ioctl_buffer; tw_ioctl_char->data_buffer_length = 512; passthru = (TW_Passthru *)&(tw_ioctl_char->firmware_command); } else if (m_escalade_type==AMCC_3WARE_678K) { tw_ioctl = (TW_Ioctl *)ioctl_buffer; tw_ioctl->cdb[0] = TW_IOCTL; tw_ioctl->opcode = TW_ATA_PASSTHRU; tw_ioctl->input_length = 512; // correct even for non-data commands tw_ioctl->output_length = 512; // correct even for non-data commands tw_output = (TW_Output *)tw_ioctl; passthru = (TW_Passthru *)&(tw_ioctl->input_data); } else { return set_err(ENOSYS, "Unrecognized escalade_type %d in linux_3ware_command_interface(disk %d)\n" "Please contact " PACKAGE_BUGREPORT "\n", (int)m_escalade_type, m_disknum); } // Same for (almost) all commands - but some reset below passthru->byte0.opcode = TW_OP_ATA_PASSTHRU; passthru->request_id = 0xFF; passthru->unit = m_disknum; passthru->status = 0; passthru->flags = 0x1; // Set registers { const ata_in_regs_48bit & r = in.in_regs; passthru->features = r.features_16; passthru->sector_count = r.sector_count_16; passthru->sector_num = r.lba_low_16; passthru->cylinder_lo = r.lba_mid_16; passthru->cylinder_hi = r.lba_high_16; passthru->drive_head = r.device; passthru->command = r.command; } // Is this a command that reads or returns 512 bytes? // passthru->param values are: // 0x0 - non data command without TFR write check, // 0x8 - non data command with TFR write check, // 0xD - data command that returns data to host from device // 0xF - data command that writes data from host to device // passthru->size values are 0x5 for non-data and 0x07 for data bool readdata = false; if (in.direction == ata_cmd_in::data_in) { readdata=true; passthru->byte0.sgloff = 0x5; passthru->size = 0x7; // TODO: Other value for multi-sector ? passthru->param = 0xD; // For 64-bit to work correctly, up the size of the command packet // in dwords by 1 to account for the 64-bit single sgl 'address' // field. Note that this doesn't agree with the typedefs but it's // right (agree with kernel driver behavior/typedefs). if ((m_escalade_type == AMCC_3WARE_9700_CHAR || m_escalade_type == AMCC_3WARE_9000_CHAR) && sizeof(long) == 8) passthru->size++; } else if (in.direction == ata_cmd_in::no_data) { // Non data command -- but doesn't use large sector // count register values. passthru->byte0.sgloff = 0x0; passthru->size = 0x5; passthru->param = 0x8; passthru->sector_count = 0x0; } else if (in.direction == ata_cmd_in::data_out) { if (m_escalade_type == AMCC_3WARE_9700_CHAR || m_escalade_type == AMCC_3WARE_9000_CHAR) memcpy(tw_ioctl_apache->data_buffer, in.buffer, in.size); else if (m_escalade_type == AMCC_3WARE_678K_CHAR) memcpy(tw_ioctl_char->data_buffer, in.buffer, in.size); else { // COMMAND NOT SUPPORTED VIA SCSI IOCTL INTERFACE // memcpy(tw_output->output_data, data, 512); // printwarning(command); // TODO: Parameter no longer valid return set_err(ENOTSUP, "DATA OUT not supported for this 3ware controller type"); } passthru->byte0.sgloff = 0x5; passthru->size = 0x7; // TODO: Other value for multi-sector ? passthru->param = 0xF; // PIO data write if ((m_escalade_type == AMCC_3WARE_9700_CHAR || m_escalade_type == AMCC_3WARE_9000_CHAR) && sizeof(long) == 8) passthru->size++; } else return set_err(EINVAL); // Now send the command down through an ioctl() int ioctlreturn; if (m_escalade_type == AMCC_3WARE_9700_CHAR || m_escalade_type == AMCC_3WARE_9000_CHAR) ioctlreturn=ioctl(get_fd(), TW_IOCTL_FIRMWARE_PASS_THROUGH, tw_ioctl_apache); else if (m_escalade_type==AMCC_3WARE_678K_CHAR) ioctlreturn=ioctl(get_fd(), TW_CMD_PACKET_WITH_DATA, tw_ioctl_char); else ioctlreturn=ioctl(get_fd(), SCSI_IOCTL_SEND_COMMAND, tw_ioctl); // Deal with the different error cases if (ioctlreturn) { if (AMCC_3WARE_678K==m_escalade_type && in.in_regs.command==ATA_SMART_CMD && ( in.in_regs.features == ATA_SMART_AUTO_OFFLINE || in.in_regs.features == ATA_SMART_AUTOSAVE ) && in.in_regs.lba_low) { // error here is probably a kernel driver whose version is too old // printwarning(command); // TODO: Parameter no longer valid return set_err(ENOTSUP, "Probably kernel driver too old"); } return set_err(EIO); } // The passthru structure is valid after return from an ioctl if: // - we are using the character interface OR // - we are using the SCSI interface and this is a NON-READ-DATA command // For SCSI interface, note that we set passthru to a different // value after ioctl(). if (AMCC_3WARE_678K==m_escalade_type) { if (readdata) passthru=NULL; else passthru=(TW_Passthru *)&(tw_output->output_data); } // See if the ATA command failed. Now that we have returned from // the ioctl() call, if passthru is valid, then: // - passthru->status contains the 3ware controller STATUS // - passthru->command contains the ATA STATUS register // - passthru->features contains the ATA ERROR register // // Check bits 0 (error bit) and 5 (device fault) of the ATA STATUS // If bit 0 (error bit) is set, then ATA ERROR register is valid. // While we *might* decode the ATA ERROR register, at the moment it // doesn't make much sense: we don't care in detail why the error // happened. if (passthru && (passthru->status || (passthru->command & 0x21))) { return set_err(EIO); } // If this is a read data command, copy data to output buffer if (readdata) { if (m_escalade_type == AMCC_3WARE_9700_CHAR || m_escalade_type == AMCC_3WARE_9000_CHAR) memcpy(in.buffer, tw_ioctl_apache->data_buffer, in.size); else if (m_escalade_type==AMCC_3WARE_678K_CHAR) memcpy(in.buffer, tw_ioctl_char->data_buffer, in.size); else memcpy(in.buffer, tw_output->output_data, in.size); } // Return register values if (passthru) { ata_out_regs_48bit & r = out.out_regs; r.error = passthru->features; r.sector_count_16 = passthru->sector_count; r.lba_low_16 = passthru->sector_num; r.lba_mid_16 = passthru->cylinder_lo; r.lba_high_16 = passthru->cylinder_hi; r.device = passthru->drive_head; r.status = passthru->command; } // look for nonexistent devices/ports if ( in.in_regs.command == ATA_IDENTIFY_DEVICE && !nonempty(in.buffer, in.size)) { return set_err(ENODEV, "No drive on port %d", m_disknum); } return true; } ///////////////////////////////////////////////////////////////////////////// /// Areca RAID support /////////////////////////////////////////////////////////////////// // SATA(ATA) device behind Areca RAID Controller class linux_areca_ata_device : public /*implements*/ areca_ata_device, public /*extends*/ linux_smart_device { public: linux_areca_ata_device(smart_interface * intf, const char * dev_name, int disknum, int encnum = 1); virtual smart_device * autodetect_open() override; virtual bool arcmsr_lock() override; virtual bool arcmsr_unlock() override; virtual int arcmsr_do_scsi_io(struct scsi_cmnd_io * iop) override; }; /////////////////////////////////////////////////////////////////// // SAS(SCSI) device behind Areca RAID Controller class linux_areca_scsi_device : public /*implements*/ areca_scsi_device, public /*extends*/ linux_smart_device { public: linux_areca_scsi_device(smart_interface * intf, const char * dev_name, int disknum, int encnum = 1); virtual smart_device * autodetect_open() override; virtual bool arcmsr_lock() override; virtual bool arcmsr_unlock() override; virtual int arcmsr_do_scsi_io(struct scsi_cmnd_io * iop) override; }; // Looks in /proc/scsi to suggest correct areca devices static int find_areca_in_proc() { const char* proc_format_string="host\tchan\tid\tlun\ttype\topens\tqdepth\tbusy\tonline\n"; // check data formwat FILE *fp=fopen("/proc/scsi/sg/device_hdr", "r"); if (!fp) { pout("Unable to open /proc/scsi/sg/device_hdr for reading\n"); return 1; } // get line, compare to format char linebuf[256]; linebuf[255]='\0'; char *out = fgets(linebuf, 256, fp); fclose(fp); if (!out) { pout("Unable to read contents of /proc/scsi/sg/device_hdr\n"); return 2; } if (strcmp(linebuf, proc_format_string)) { // wrong format! // Fix this by comparing only tokens not white space!! pout("Unexpected format %s in /proc/scsi/sg/device_hdr\n", proc_format_string); return 3; } // Format is understood, now search for correct device fp=fopen("/proc/scsi/sg/devices", "r"); if (!fp) return 1; int host, chan, id, lun, type, opens, qdepth, busy, online; int dev=-1; // search all lines of /proc/scsi/sg/devices while (9 == fscanf(fp, "%d %d %d %d %d %d %d %d %d", &host, &chan, &id, &lun, &type, &opens, &qdepth, &busy, &online)) { dev++; if (id == 16 && type == 3) { // devices with id=16 and type=3 might be Areca controllers pout("Device /dev/sg%d appears to be an Areca controller.\n", dev); } } fclose(fp); return 0; } // Areca RAID Controller(SATA Disk) linux_areca_ata_device::linux_areca_ata_device(smart_interface * intf, const char * dev_name, int disknum, int encnum) : smart_device(intf, dev_name, "areca", "areca"), linux_smart_device(O_RDWR | O_EXCL | O_NONBLOCK) { set_disknum(disknum); set_encnum(encnum); set_info().info_name = strprintf("%s [areca_disk#%02d_enc#%02d]", dev_name, disknum, encnum); } smart_device * linux_areca_ata_device::autodetect_open() { // autodetect device type int is_ata = arcmsr_get_dev_type(); if(is_ata < 0) { set_err(EIO); return this; } if(is_ata == 1) { // SATA device return this; } // SAS device smart_device_auto_ptr newdev(new linux_areca_scsi_device(smi(), get_dev_name(), get_disknum(), get_encnum())); close(); delete this; newdev->open(); // TODO: Can possibly pass open fd return newdev.release(); } int linux_areca_ata_device::arcmsr_do_scsi_io(struct scsi_cmnd_io * iop) { int ioctlreturn = 0; if(!is_open()) { if(!open()){ find_areca_in_proc(); } } ioctlreturn = do_normal_scsi_cmnd_io(get_fd(), iop, scsi_debugmode); if ( ioctlreturn || iop->scsi_status ) { // errors found return -1; } return ioctlreturn; } bool linux_areca_ata_device::arcmsr_lock() { return true; } bool linux_areca_ata_device::arcmsr_unlock() { return true; } // Areca RAID Controller(SAS Device) linux_areca_scsi_device::linux_areca_scsi_device(smart_interface * intf, const char * dev_name, int disknum, int encnum) : smart_device(intf, dev_name, "areca", "areca"), linux_smart_device(O_RDWR | O_EXCL | O_NONBLOCK) { set_disknum(disknum); set_encnum(encnum); set_info().info_name = strprintf("%s [areca_disk#%02d_enc#%02d]", dev_name, disknum, encnum); } smart_device * linux_areca_scsi_device::autodetect_open() { return this; } int linux_areca_scsi_device::arcmsr_do_scsi_io(struct scsi_cmnd_io * iop) { int ioctlreturn = 0; if(!is_open()) { if(!open()){ find_areca_in_proc(); } } ioctlreturn = do_normal_scsi_cmnd_io(get_fd(), iop, scsi_debugmode); if ( ioctlreturn || iop->scsi_status ) { // errors found return -1; } return ioctlreturn; } bool linux_areca_scsi_device::arcmsr_lock() { return true; } bool linux_areca_scsi_device::arcmsr_unlock() { return true; } ///////////////////////////////////////////////////////////////////////////// /// Marvell support class linux_marvell_device : public /*implements*/ ata_device_with_command_set, public /*extends*/ linux_smart_device { public: linux_marvell_device(smart_interface * intf, const char * dev_name, const char * req_type); protected: virtual int ata_command_interface(smart_command_set command, int select, char * data); }; linux_marvell_device::linux_marvell_device(smart_interface * intf, const char * dev_name, const char * req_type) : smart_device(intf, dev_name, "marvell", req_type), linux_smart_device(O_RDONLY | O_NONBLOCK) { } int linux_marvell_device::ata_command_interface(smart_command_set command, int select, char * data) { typedef struct { int inlen; int outlen; char cmd[540]; } mvsata_scsi_cmd; int copydata = 0; mvsata_scsi_cmd smart_command; unsigned char *buff = (unsigned char *)&smart_command.cmd[6]; // See struct hd_drive_cmd_hdr in hdreg.h // buff[0]: ATA COMMAND CODE REGISTER // buff[1]: ATA SECTOR NUMBER REGISTER // buff[2]: ATA FEATURES REGISTER // buff[3]: ATA SECTOR COUNT REGISTER // clear out buff. Large enough for HDIO_DRIVE_CMD (4+512 bytes) memset(&smart_command, 0, sizeof(smart_command)); smart_command.inlen = 540; smart_command.outlen = 540; smart_command.cmd[0] = 0xC; //Vendor-specific code smart_command.cmd[4] = 6; //command length buff[0] = ATA_SMART_CMD; switch (command){ case CHECK_POWER_MODE: buff[0]=ATA_CHECK_POWER_MODE; break; case READ_VALUES: buff[2]=ATA_SMART_READ_VALUES; copydata=buff[3]=1; break; case READ_THRESHOLDS: buff[2]=ATA_SMART_READ_THRESHOLDS; copydata=buff[1]=buff[3]=1; break; case READ_LOG: buff[2]=ATA_SMART_READ_LOG_SECTOR; buff[1]=select; copydata=buff[3]=1; break; case IDENTIFY: buff[0]=ATA_IDENTIFY_DEVICE; copydata=buff[3]=1; break; case PIDENTIFY: buff[0]=ATA_IDENTIFY_PACKET_DEVICE; copydata=buff[3]=1; break; case ENABLE: buff[2]=ATA_SMART_ENABLE; buff[1]=1; break; case DISABLE: buff[2]=ATA_SMART_DISABLE; buff[1]=1; break; case STATUS: case STATUS_CHECK: // this command only says if SMART is working. It could be // replaced with STATUS_CHECK below. buff[2] = ATA_SMART_STATUS; break; case AUTO_OFFLINE: buff[2]=ATA_SMART_AUTO_OFFLINE; buff[3]=select; // YET NOTE - THIS IS A NON-DATA COMMAND!! break; case AUTOSAVE: buff[2]=ATA_SMART_AUTOSAVE; buff[3]=select; // YET NOTE - THIS IS A NON-DATA COMMAND!! break; case IMMEDIATE_OFFLINE: buff[2]=ATA_SMART_IMMEDIATE_OFFLINE; buff[1]=select; break; default: pout("Unrecognized command %d in mvsata_os_specific_handler()\n", command); errno = EINVAL; return -1; } // There are two different types of ioctls(). The HDIO_DRIVE_TASK // one is this: // We are now doing the HDIO_DRIVE_CMD type ioctl. if (ioctl(get_fd(), SCSI_IOCTL_SEND_COMMAND, (void *)&smart_command)) return -1; if (command==CHECK_POWER_MODE) { // LEON -- CHECK THIS PLEASE. THIS SHOULD BE THE SECTOR COUNT // REGISTER, AND IT MIGHT BE buff[2] NOT buff[3]. Bruce data[0]=buff[3]; return 0; } // Always succeed on a SMART status, as a disk that failed returned // buff[4]=0xF4, buff[5]=0x2C, i.e. "Bad SMART status" (see below). if (command == STATUS) return 0; //Data returned is starting from 0 offset if (command == STATUS_CHECK) { // Cyl low and Cyl high unchanged means "Good SMART status" if (buff[4] == 0x4F && buff[5] == 0xC2) return 0; // These values mean "Bad SMART status" if (buff[4] == 0xF4 && buff[5] == 0x2C) return 1; // We haven't gotten output that makes sense; print out some debugging info syserror("Error SMART Status command failed"); pout("Please get assistance from %s\n",PACKAGE_BUGREPORT); pout("Register values returned from SMART Status command are:\n"); pout("CMD =0x%02x\n",(int)buff[0]); pout("FR =0x%02x\n",(int)buff[1]); pout("NS =0x%02x\n",(int)buff[2]); pout("SC =0x%02x\n",(int)buff[3]); pout("CL =0x%02x\n",(int)buff[4]); pout("CH =0x%02x\n",(int)buff[5]); pout("SEL=0x%02x\n",(int)buff[6]); return -1; } if (copydata) memcpy(data, buff, 512); return 0; } ///////////////////////////////////////////////////////////////////////////// /// Highpoint RAID support class linux_highpoint_device : public /*implements*/ ata_device_with_command_set, public /*extends*/ linux_smart_device { public: linux_highpoint_device(smart_interface * intf, const char * dev_name, unsigned char controller, unsigned char channel, unsigned char port); protected: virtual int ata_command_interface(smart_command_set command, int select, char * data); private: unsigned char m_hpt_data[3]; ///< controller/channel/port }; linux_highpoint_device::linux_highpoint_device(smart_interface * intf, const char * dev_name, unsigned char controller, unsigned char channel, unsigned char port) : smart_device(intf, dev_name, "hpt", "hpt"), linux_smart_device(O_RDONLY | O_NONBLOCK) { m_hpt_data[0] = controller; m_hpt_data[1] = channel; m_hpt_data[2] = port; set_info().info_name = strprintf("%s [hpt_disk_%u/%u/%u]", dev_name, m_hpt_data[0], m_hpt_data[1], m_hpt_data[2]); } // this implementation is derived from ata_command_interface with a header // packing for highpoint linux driver ioctl interface // // ioctl(fd,HPTIO_CTL,buff) // ^^^^^^^^^ // // structure of hpt_buff // +----+----+----+----+--------------------.....---------------------+ // | 1 | 2 | 3 | 4 | 5 | // +----+----+----+----+--------------------.....---------------------+ // // 1: The target controller [ int ( 4 Bytes ) ] // 2: The channel of the target controllee [ int ( 4 Bytes ) ] // 3: HDIO_ ioctl call [ int ( 4 Bytes ) ] // available from ${LINUX_KERNEL_SOURCE}/Documentation/ioctl/hdio // 4: the pmport that disk attached, [ int ( 4 Bytes ) ] // if no pmport device, set to 1 or leave blank // 5: data [ void * ( var leangth ) ] // #define STRANGE_BUFFER_LENGTH (4+512*0xf8) int linux_highpoint_device::ata_command_interface(smart_command_set command, int select, char * data) { unsigned char hpt_buff[4*sizeof(int) + STRANGE_BUFFER_LENGTH]; unsigned int *hpt = (unsigned int *)hpt_buff; unsigned char *buff = &hpt_buff[4*sizeof(int)]; int copydata = 0; const int HDIO_DRIVE_CMD_OFFSET = 4; memset(hpt_buff, 0, 4*sizeof(int) + STRANGE_BUFFER_LENGTH); hpt[0] = m_hpt_data[0]; // controller id hpt[1] = m_hpt_data[1]; // channel number hpt[3] = m_hpt_data[2]; // pmport number buff[0]=ATA_SMART_CMD; switch (command){ case CHECK_POWER_MODE: buff[0]=ATA_CHECK_POWER_MODE; copydata=1; break; case READ_VALUES: buff[2]=ATA_SMART_READ_VALUES; buff[3]=1; copydata=512; break; case READ_THRESHOLDS: buff[2]=ATA_SMART_READ_THRESHOLDS; buff[1]=buff[3]=1; copydata=512; break; case READ_LOG: buff[2]=ATA_SMART_READ_LOG_SECTOR; buff[1]=select; buff[3]=1; copydata=512; break; case WRITE_LOG: break; case IDENTIFY: buff[0]=ATA_IDENTIFY_DEVICE; buff[3]=1; copydata=512; break; case PIDENTIFY: buff[0]=ATA_IDENTIFY_PACKET_DEVICE; buff[3]=1; copydata=512; break; case ENABLE: buff[2]=ATA_SMART_ENABLE; buff[1]=1; break; case DISABLE: buff[2]=ATA_SMART_DISABLE; buff[1]=1; break; case STATUS: buff[2]=ATA_SMART_STATUS; break; case AUTO_OFFLINE: buff[2]=ATA_SMART_AUTO_OFFLINE; buff[3]=select; break; case AUTOSAVE: buff[2]=ATA_SMART_AUTOSAVE; buff[3]=select; break; case IMMEDIATE_OFFLINE: buff[2]=ATA_SMART_IMMEDIATE_OFFLINE; buff[1]=select; break; case STATUS_CHECK: buff[1]=ATA_SMART_STATUS; break; default: pout("Unrecognized command %d in linux_highpoint_command_interface()\n" "Please contact " PACKAGE_BUGREPORT "\n", command); errno=ENOSYS; return -1; } if (command==WRITE_LOG) { unsigned char task[4*sizeof(int)+sizeof(ide_task_request_t)+512]; unsigned int *hpt_tf = (unsigned int *)task; ide_task_request_t *reqtask = (ide_task_request_t *)(&task[4*sizeof(int)]); task_struct_t *taskfile = (task_struct_t *)reqtask->io_ports; memset(task, 0, sizeof(task)); hpt_tf[0] = m_hpt_data[0]; // controller id hpt_tf[1] = m_hpt_data[1]; // channel number hpt_tf[3] = m_hpt_data[2]; // pmport number hpt_tf[2] = HDIO_DRIVE_TASKFILE; // real hd ioctl taskfile->data = 0; taskfile->feature = ATA_SMART_WRITE_LOG_SECTOR; taskfile->sector_count = 1; taskfile->sector_number = select; taskfile->low_cylinder = 0x4f; taskfile->high_cylinder = 0xc2; taskfile->device_head = 0; taskfile->command = ATA_SMART_CMD; reqtask->data_phase = TASKFILE_OUT; reqtask->req_cmd = IDE_DRIVE_TASK_OUT; reqtask->out_size = 512; reqtask->in_size = 0; memcpy(task+sizeof(ide_task_request_t)+4*sizeof(int), data, 512); if (ioctl(get_fd(), HPTIO_CTL, task)) return -1; return 0; } if (command==STATUS_CHECK){ unsigned const char normal_lo=0x4f, normal_hi=0xc2; unsigned const char failed_lo=0xf4, failed_hi=0x2c; buff[4]=normal_lo; buff[5]=normal_hi; hpt[2] = HDIO_DRIVE_TASK; if (ioctl(get_fd(), HPTIO_CTL, hpt_buff)) return -1; if (buff[4]==normal_lo && buff[5]==normal_hi) return 0; if (buff[4]==failed_lo && buff[5]==failed_hi) return 1; syserror("Error SMART Status command failed"); pout("Please get assistance from " PACKAGE_HOMEPAGE "\n"); pout("Register values returned from SMART Status command are:\n"); pout("CMD=0x%02x\n",(int)buff[0]); pout("FR =0x%02x\n",(int)buff[1]); pout("NS =0x%02x\n",(int)buff[2]); pout("SC =0x%02x\n",(int)buff[3]); pout("CL =0x%02x\n",(int)buff[4]); pout("CH =0x%02x\n",(int)buff[5]); pout("SEL=0x%02x\n",(int)buff[6]); return -1; } #if 1 if (command==IDENTIFY || command==PIDENTIFY) { unsigned char deviceid[4*sizeof(int)+512*sizeof(char)]; unsigned int *hpt_id = (unsigned int *)deviceid; hpt_id[0] = m_hpt_data[0]; // controller id hpt_id[1] = m_hpt_data[1]; // channel number hpt_id[3] = m_hpt_data[2]; // pmport number hpt_id[2] = HDIO_GET_IDENTITY; if (!ioctl(get_fd(), HPTIO_CTL, deviceid) && (deviceid[4*sizeof(int)] & 0x8000)) buff[0]=(command==IDENTIFY)?ATA_IDENTIFY_PACKET_DEVICE:ATA_IDENTIFY_DEVICE; } #endif hpt[2] = HDIO_DRIVE_CMD; if ((ioctl(get_fd(), HPTIO_CTL, hpt_buff))) return -1; if (command==CHECK_POWER_MODE) buff[HDIO_DRIVE_CMD_OFFSET]=buff[2]; if (copydata) memcpy(data, buff+HDIO_DRIVE_CMD_OFFSET, copydata); return 0; } #if 0 // TODO: Migrate from 'smart_command_set' to 'ata_in_regs' OR remove the function // Utility function for printing warnings void printwarning(smart_command_set command){ static int printed[4]={0,0,0,0}; const char* message= "can not be passed through the 3ware 3w-xxxx driver. This can be fixed by\n" "applying a simple 3w-xxxx driver patch that can be found here:\n" PACKAGE_HOMEPAGE "\n" "Alternatively, upgrade your 3w-xxxx driver to version 1.02.00.037 or greater.\n\n"; if (command==AUTO_OFFLINE && !printed[0]) { printed[0]=1; pout("The SMART AUTO-OFFLINE ENABLE command (smartmontools -o on option/Directive)\n%s", message); } else if (command==AUTOSAVE && !printed[1]) { printed[1]=1; pout("The SMART AUTOSAVE ENABLE command (smartmontools -S on option/Directive)\n%s", message); } else if (command==STATUS_CHECK && !printed[2]) { printed[2]=1; pout("The SMART RETURN STATUS return value (smartmontools -H option/Directive)\n%s", message); } else if (command==WRITE_LOG && !printed[3]) { printed[3]=1; pout("The SMART WRITE LOG command (smartmontools -t selective) only supported via char /dev/tw[ae] interface\n"); } return; } #endif ///////////////////////////////////////////////////////////////////////////// /// SCSI open with autodetection support smart_device * linux_scsi_device::autodetect_open() { // Open device if (!open()) return this; // No Autodetection if device type was specified by user bool sat_only = false; if (*get_req_type()) { // Detect SAT if device object was created by scan_smart_devices(). if (!(m_scanning && !strcmp(get_req_type(), "sat"))) return this; sat_only = true; } // The code below is based on smartd.cpp:SCSIFilterKnown() // Get INQUIRY unsigned char req_buff[64] = {0, }; int req_len = 36; if (scsiStdInquiry(this, req_buff, req_len)) { // Marvell controllers fail on a 36 bytes StdInquiry, but 64 suffices // watch this spot ... other devices could lock up here req_len = 64; if (scsiStdInquiry(this, req_buff, req_len)) { // device doesn't like INQUIRY commands close(); set_err(EIO, "INQUIRY failed"); return this; } } int avail_len = req_buff[4] + 5; int len = (avail_len < req_len ? avail_len : req_len); if (len < 36) { if (sat_only) { close(); set_err(EIO, "INQUIRY too short for SAT"); } return this; } // Use INQUIRY to detect type if (!sat_only) { // 3ware ? if (!memcmp(req_buff + 8, "3ware", 5) || !memcmp(req_buff + 8, "AMCC", 4)) { close(); set_err(EINVAL, "AMCC/3ware controller, please try adding '-d 3ware,N',\n" "you may need to replace %s with /dev/twlN, /dev/twaN or /dev/tweN", get_dev_name()); return this; } // DELL? if (!memcmp(req_buff + 8, "DELL PERC", 12) || !memcmp(req_buff + 8, "MegaRAID", 8) || !memcmp(req_buff + 16, "PERC ", 5) || !memcmp(req_buff + 8, "LSI\0",4) ) { close(); set_err(EINVAL, "DELL or MegaRaid controller, please try adding '-d megaraid,N'"); return this; } // Marvell ? if (len >= 42 && !memcmp(req_buff + 36, "MVSATA", 6)) { //pout("Device %s: using '-d marvell' for ATA disk with Marvell driver\n", get_dev_name()); close(); smart_device_auto_ptr newdev( new linux_marvell_device(smi(), get_dev_name(), get_req_type()) ); newdev->open(); // TODO: Can possibly pass open fd delete this; return newdev.release(); } } // SAT or USB ? { smart_device * newdev = smi()->autodetect_sat_device(this, req_buff, len); if (newdev) // NOTE: 'this' is now owned by '*newdev' return newdev; } // Nothing special found if (sat_only) { close(); set_err(EIO, "Not a SAT device"); } return this; } ///////////////////////////////////////////////////////////////////////////// /// NVMe support class linux_nvme_device : public /*implements*/ nvme_device, public /*extends*/ linux_smart_device { public: linux_nvme_device(smart_interface * intf, const char * dev_name, const char * req_type, unsigned nsid); virtual bool open() override; virtual bool nvme_pass_through(const nvme_cmd_in & in, nvme_cmd_out & out) override; }; linux_nvme_device::linux_nvme_device(smart_interface * intf, const char * dev_name, const char * req_type, unsigned nsid) : smart_device(intf, dev_name, "nvme", req_type), nvme_device(nsid), linux_smart_device(O_RDONLY | O_NONBLOCK) { } bool linux_nvme_device::open() { if (!linux_smart_device::open()) return false; if (!get_nsid()) { // Use actual NSID (/dev/nvmeXnN) if available, // else use broadcast namespace (/dev/nvmeX) int nsid = ioctl(get_fd(), NVME_IOCTL_ID, (void*)0); set_nsid(nsid); } return true; } bool linux_nvme_device::nvme_pass_through(const nvme_cmd_in & in, nvme_cmd_out & out) { nvme_passthru_cmd pt; memset(&pt, 0, sizeof(pt)); pt.opcode = in.opcode; pt.nsid = in.nsid; pt.addr = (uint64_t)in.buffer; pt.data_len = in.size; pt.cdw10 = in.cdw10; pt.cdw11 = in.cdw11; pt.cdw12 = in.cdw12; pt.cdw13 = in.cdw13; pt.cdw14 = in.cdw14; pt.cdw15 = in.cdw15; // Kernel default for NVMe admin commands is 60 seconds // pt.timeout_ms = 60 * 1000; int status = ioctl(get_fd(), NVME_IOCTL_ADMIN_CMD, &pt); if (status < 0) return set_err(errno, "NVME_IOCTL_ADMIN_CMD: %s", strerror(errno)); if (status > 0) return set_nvme_err(out, status); out.result = pt.result; return true; } ////////////////////////////////////////////////////////////////////// // USB bridge ID detection // Read USB ID from /sys file static bool read_id(const std::string & path, unsigned short & id) { FILE * f = fopen(path.c_str(), "r"); if (!f) return false; int n = -1; bool ok = (fscanf(f, "%hx%n", &id, &n) == 1 && n == 4); fclose(f); return ok; } // Get USB bridge ID for "sdX" or "sgN" static bool get_usb_id(const char * name, unsigned short & vendor_id, unsigned short & product_id, unsigned short & version) { // Only "sdX" or "sgN" supported if (!(name[0] == 's' && (name[1] == 'd' || name[1] == 'g') && !strchr(name, '/'))) return false; // Start search at dir referenced by symlink // "/sys/block/sdX/device" or // "/sys/class/scsi_generic/sgN" // -> "/sys/devices/.../usb*/.../host*/target*/..." std::string dir = strprintf("/sys/%s/%s%s", (name[1] == 'd' ? "block" : "class/scsi_generic"), name, (name[1] == 'd' ? "/device" : "")); // Stop search at "/sys/devices" struct stat st; if (stat("/sys/devices", &st)) return false; ino_t stop_ino = st.st_ino; // Search in parent directories until "idVendor" is found, // fail if "/sys/devices" reached or too many iterations int cnt = 0; do { dir += "/.."; if (!(++cnt < 10 && !stat(dir.c_str(), &st) && st.st_ino != stop_ino)) return false; } while (access((dir + "/idVendor").c_str(), 0)); if (scsi_debugmode > 1) { pout("Found idVendor in: %s\n", dir.c_str()); char * p = realpath(dir.c_str(), (char *)0); if (p) { pout(" realpath: %s\n", p); free(p); } } // Read IDs if (!( read_id(dir + "/idVendor", vendor_id) && read_id(dir + "/idProduct", product_id) && read_id(dir + "/bcdDevice", version) )) return false; if (scsi_debugmode > 1) pout("USB ID = 0x%04x:0x%04x (0x%03x)\n", vendor_id, product_id, version); return true; } ////////////////////////////////////////////////////////////////////// /// Linux interface class linux_smart_interface : public /*implements*/ smart_interface { public: virtual std::string get_os_version_str() override; virtual std::string get_app_examples(const char * appname) override; virtual bool scan_smart_devices(smart_device_list & devlist, const smart_devtype_list & types, const char * pattern = 0) override; protected: virtual ata_device * get_ata_device(const char * name, const char * type) override; virtual scsi_device * get_scsi_device(const char * name, const char * type) override; virtual nvme_device * get_nvme_device(const char * name, const char * type, unsigned nsid) override; virtual smart_device * autodetect_smart_device(const char * name) override; virtual smart_device * get_custom_smart_device(const char * name, const char * type) override; virtual std::string get_valid_custom_dev_types_str() override; private: static constexpr int devxy_to_n_max = 701; // "/dev/sdzz" static int devxy_to_n(const char * name, bool debug); void get_dev_list(smart_device_list & devlist, const char * pattern, bool scan_scsi, bool (* p_dev_sdxy_seen)[devxy_to_n_max+1], bool scan_nvme, const char * req_type, bool autodetect); bool get_dev_megasas(smart_device_list & devlist); smart_device * missing_option(const char * opt); int megasas_dcmd_cmd(int bus_no, uint32_t opcode, void *buf, size_t bufsize, uint8_t *mbox, size_t mboxlen, uint8_t *statusp); int megasas_pd_add_list(int bus_no, smart_device_list & devlist); bool get_dev_sssraid(smart_device_list & devlist); int sssraid_pd_add_list(int bus_no, smart_device_list & devlist); int sssraid_pdlist_cmd(int bus_no, uint32_t start_idx, void *buf, size_t bufsize, uint8_t *statusp); }; std::string linux_smart_interface::get_os_version_str() { struct utsname u; if (!uname(&u)) return strprintf("%s-linux-%s", u.machine, u.release); else return SMARTMONTOOLS_BUILD_HOST; } std::string linux_smart_interface::get_app_examples(const char * appname) { if (!strcmp(appname, "smartctl")) return smartctl_examples; return ""; } // "/dev/sdXY" -> 0-devxy_to_n_max // "/dev/disk/by-id/NAME" -> "../../sdXY" -> 0-devxy_to_n_max // Other -> -1 int linux_smart_interface::devxy_to_n(const char * name, bool debug) { const char * xy; char dest[256]; if (str_starts_with(name, "/dev/sd")) { // Assume "/dev/sdXY" xy = name + sizeof("/dev/sd") - 1; } else { // Assume "/dev/disk/by-id/NAME", check link target int sz = readlink(name, dest, sizeof(dest)-1); if (!(0 < sz && sz < (int)sizeof(dest))) return -1; dest[sz] = 0; if (!str_starts_with(dest, "../../sd")) return -1; if (debug) pout("%s -> %s\n", name, dest); xy = dest + sizeof("../../sd") - 1; } char x = xy[0]; if (!('a' <= x && x <= 'z')) return -1; char y = xy[1]; if (!y) // "[a-z]" -> 0-25 return x - 'a'; if (!('a' <= y && y <= 'z' && !xy[2])) return -1; // "[a-z][a-z]" -> 26-701 STATIC_ASSERT((('z' - 'a' + 1) * ('z' - 'a' + 1) + ('z' - 'a')) == devxy_to_n_max); return (x - 'a' + 1) * ('z' - 'a' + 1) + (y - 'a'); } void linux_smart_interface::get_dev_list(smart_device_list & devlist, const char * pattern, bool scan_scsi, bool (* p_dev_sdxy_seen)[devxy_to_n_max+1], bool scan_nvme, const char * req_type, bool autodetect) { bool debug = (ata_debugmode || scsi_debugmode || nvme_debugmode); // Use glob to look for any directory entries matching the pattern glob_t globbuf; memset(&globbuf, 0, sizeof(globbuf)); int retglob = glob(pattern, GLOB_ERR, NULL, &globbuf); if (retglob) { // glob failed: free memory and return globfree(&globbuf); if (debug) pout("glob(3) error %d for pattern %s\n", retglob, pattern); if (retglob == GLOB_NOSPACE) throw std::bad_alloc(); return; } // did we find too many paths? const int max_pathc = 1024; int n = (int)globbuf.gl_pathc; if (n > max_pathc) { pout("glob(3) found %d > MAX=%d devices matching pattern %s: ignoring %d paths\n", n, max_pathc, pattern, n - max_pathc); n = max_pathc; } // now step through the list returned by glob. for (int i = 0; i < n; i++) { const char * name = globbuf.gl_pathv[i]; if (p_dev_sdxy_seen) { // Follow "/dev/disk/by-id/*" symlink and check for duplicate "/dev/sdXY" int dev_n = devxy_to_n(name, debug); if (!(0 <= dev_n && dev_n <= devxy_to_n_max)) continue; if ((*p_dev_sdxy_seen)[dev_n]) { if (debug) pout("%s: duplicate, ignored\n", name); continue; } (*p_dev_sdxy_seen)[dev_n] = true; } smart_device * dev; if (autodetect) { dev = autodetect_smart_device(name); if (!dev) continue; } else if (scan_scsi) dev = new linux_scsi_device(this, name, req_type, true /*scanning*/); else if (scan_nvme) dev = new linux_nvme_device(this, name, req_type, 0 /* use default nsid */); else dev = new linux_ata_device(this, name, req_type); devlist.push_back(dev); } // free memory globfree(&globbuf); } // getting devices from LSI SAS MegaRaid, if available bool linux_smart_interface::get_dev_megasas(smart_device_list & devlist) { /* Scanning of disks on MegaRaid device */ /* Perform mknod of device ioctl node */ int mjr, n1; char line[128]; bool scan_megasas = false; FILE * fp = fopen("/proc/devices", "r"); if (!fp) return false; while (fgets(line, sizeof(line), fp) != NULL) { n1=0; if (sscanf(line, "%d megaraid_sas_ioctl%n", &mjr, &n1) == 1 && n1 == 22) { scan_megasas = true; n1=mknod("/dev/megaraid_sas_ioctl_node", S_IFCHR|0600, makedev(mjr, 0)); if(scsi_debugmode > 0) pout("Creating /dev/megaraid_sas_ioctl_node = %d\n", n1 >= 0 ? 0 : errno); if (n1 >= 0 || errno == EEXIST) break; } } fclose(fp); if(!scan_megasas) return false; // getting bus numbers with megasas devices // we are using sysfs to get list of all scsi hosts DIR * dp = opendir ("/sys/class/scsi_host/"); if (dp != NULL) { struct dirent *ep; while ((ep = readdir (dp)) != NULL) { unsigned int host_no = 0; if (!sscanf(ep->d_name, "host%u", &host_no)) continue; /* proc_name should be megaraid_sas */ char sysfsdir[256]; snprintf(sysfsdir, sizeof(sysfsdir) - 1, "/sys/class/scsi_host/host%u/proc_name", host_no); if((fp = fopen(sysfsdir, "r")) == NULL) continue; if(fgets(line, sizeof(line), fp) != NULL && !strncmp(line,"megaraid_sas",12)) { megasas_pd_add_list(host_no, devlist); } fclose(fp); } (void) closedir (dp); } else { /* sysfs not mounted ? */ for(unsigned i = 0; i <=16; i++) // trying to add devices on first 16 buses megasas_pd_add_list(i, devlist); } return true; } // getting devices from 3SNIC Raid, if available bool linux_smart_interface::get_dev_sssraid(smart_device_list & devlist) { /* Scanning of disks on sssraid device */ /* Perform mknod of device ioctl node */ char line[128]; FILE * fp = NULL; // getting bus numbers with 3snic sas devices // we are using sysfs to get list of all scsi hosts DIR * dp = opendir ("/sys/class/scsi_host/"); if (dp != NULL) { struct dirent *ep; while ((ep = readdir (dp)) != NULL) { unsigned int host_no = 0; if (!sscanf(ep->d_name, "host%u", &host_no)) continue; /* proc_name should be sssraid */ char sysfsdir[256]; snprintf(sysfsdir, sizeof(sysfsdir) - 1, "/sys/class/scsi_host/host%u/proc_name", host_no); if((fp = fopen(sysfsdir, "r")) == NULL) continue; if(fgets(line, sizeof(line), fp) != NULL && !strncmp(line,"sssraid",7)) { sssraid_pd_add_list(host_no, devlist); } fclose(fp); } (void) closedir (dp); } else { /* sysfs not mounted ? */ for(unsigned i = 0; i <=16; i++) // trying to add devices on first 16 buses sssraid_pd_add_list(i, devlist); } return true; } bool linux_smart_interface::scan_smart_devices(smart_device_list & devlist, const smart_devtype_list & types, const char * pattern /*= 0*/) { if (pattern) return set_err(EINVAL, "DEVICESCAN with pattern not implemented yet"); // Scan type list bool by_id = false; const char * type_ata = 0, * type_scsi = 0, * type_sat = 0, * type_nvme = 0; for (unsigned i = 0; i < types.size(); i++) { const char * type = types[i].c_str(); if (!strcmp(type, "by-id")) by_id = true; else if (!strcmp(type, "ata")) type_ata = "ata"; else if (!strcmp(type, "scsi")) type_scsi = "scsi"; else if (!strcmp(type, "sat")) type_sat = "sat"; else if (!strcmp(type, "nvme")) type_nvme = "nvme"; else return set_err(EINVAL, "Invalid type '%s', valid arguments are: by-id, ata, scsi, sat, nvme", type); } // Use default if no type specified if (!(type_ata || type_scsi || type_sat || type_nvme)) { type_ata = type_scsi = type_sat = ""; #ifdef WITH_NVME_DEVICESCAN // TODO: Remove when NVMe support is no longer EXPERIMENTAL type_nvme = ""; #endif } if (type_ata) get_dev_list(devlist, "/dev/hd[a-t]", false, 0, false, type_ata, false); if (type_scsi || type_sat) { // "sat" detection will be later handled in linux_scsi_device::autodetect_open() const char * type_scsi_sat = ((type_scsi && type_sat) ? "" // detect both : (type_scsi ? type_scsi : type_sat)); bool autodetect = !*type_scsi_sat; // If no type specified, detect USB also bool dev_sdxy_seen[devxy_to_n_max+1] = {false, }; bool (*p_dev_sdxy_seen)[devxy_to_n_max+1] = 0; if (by_id) { // Scan unique symlinks first get_dev_list(devlist, "/dev/disk/by-id/*", true, &dev_sdxy_seen, false, type_scsi_sat, autodetect); p_dev_sdxy_seen = &dev_sdxy_seen; // Check for duplicates below } get_dev_list(devlist, "/dev/sd[a-z]", true, p_dev_sdxy_seen, false, type_scsi_sat, autodetect); get_dev_list(devlist, "/dev/sd[a-z][a-z]", true, p_dev_sdxy_seen, false, type_scsi_sat, autodetect); // get device list from the megaraid device get_dev_megasas(devlist); // get device list from the sssraid device get_dev_sssraid(devlist); } if (type_nvme) { get_dev_list(devlist, "/dev/nvme[0-9]", false, 0, true, type_nvme, false); get_dev_list(devlist, "/dev/nvme[1-9][0-9]", false, 0, true, type_nvme, false); } return true; } ata_device * linux_smart_interface::get_ata_device(const char * name, const char * type) { return new linux_ata_device(this, name, type); } scsi_device * linux_smart_interface::get_scsi_device(const char * name, const char * type) { return new linux_scsi_device(this, name, type); } nvme_device * linux_smart_interface::get_nvme_device(const char * name, const char * type, unsigned nsid) { return new linux_nvme_device(this, name, type, nsid); } smart_device * linux_smart_interface::missing_option(const char * opt) { set_err(EINVAL, "requires option '%s'", opt); return 0; } int linux_smart_interface::megasas_dcmd_cmd(int bus_no, uint32_t opcode, void *buf, size_t bufsize, uint8_t *mbox, size_t mboxlen, uint8_t *statusp) { struct megasas_iocpacket ioc; if ((mbox != NULL && (mboxlen == 0 || mboxlen > MFI_MBOX_SIZE)) || (mbox == NULL && mboxlen != 0)) { errno = EINVAL; return (-1); } memset(&ioc, 0, sizeof(ioc)); struct megasas_dcmd_frame * dcmd = &ioc.frame.dcmd; ioc.host_no = bus_no; if (mbox) memcpy(dcmd->mbox.w, mbox, mboxlen); dcmd->cmd = MFI_CMD_DCMD; dcmd->timeout = 0; dcmd->flags = 0; dcmd->data_xfer_len = bufsize; dcmd->opcode = opcode; if (bufsize > 0) { dcmd->sge_count = 1; dcmd->data_xfer_len = bufsize; dcmd->sgl.sge32[0].phys_addr = (intptr_t)buf; dcmd->sgl.sge32[0].length = (uint32_t)bufsize; ioc.sge_count = 1; ioc.sgl_off = offsetof(struct megasas_dcmd_frame, sgl); ioc.sgl[0].iov_base = buf; ioc.sgl[0].iov_len = bufsize; } int fd; if ((fd = ::open("/dev/megaraid_sas_ioctl_node", O_RDWR)) < 0) { return (errno); } int r = ioctl(fd, MEGASAS_IOC_FIRMWARE, &ioc); ::close(fd); if (r < 0) { return (r); } if (statusp != NULL) *statusp = dcmd->cmd_status; else if (dcmd->cmd_status != MFI_STAT_OK) { fprintf(stderr, "command %x returned error status %x\n", opcode, dcmd->cmd_status); errno = EIO; return (-1); } return (0); } int linux_smart_interface::megasas_pd_add_list(int bus_no, smart_device_list & devlist) { /* * Keep fetching the list in a loop until we have a large enough * buffer to hold the entire list. */ megasas_pd_list * list = 0; for (unsigned list_size = 1024; ; ) { list = reinterpret_cast(realloc(list, list_size)); if (!list) throw std::bad_alloc(); memset(list, 0, list_size); if (megasas_dcmd_cmd(bus_no, MFI_DCMD_PD_GET_LIST, list, list_size, NULL, 0, NULL) < 0) { free(list); return (-1); } if (list->size <= list_size) break; list_size = list->size; } // adding all SCSI devices for (unsigned i = 0; i < list->count; i++) { if(list->addr[i].scsi_dev_type) continue; /* non disk device found */ char line[128]; snprintf(line, sizeof(line) - 1, "/dev/bus/%d", bus_no); smart_device * dev = new linux_megaraid_device(this, line, list->addr[i].device_id); devlist.push_back(dev); } free(list); return (0); } int linux_smart_interface::sssraid_pdlist_cmd(int bus_no, uint32_t start_idx_param, void *buf, size_t bufsize, uint8_t *statusp) { struct sg_io_v4 io_hdr_v4 = { 0 }; unsigned char sense_buff[ADM_SCSI_CDB_SENSE_MAX_LEN] = { 0 }; struct bsg_ioctl_cmd bsg_param = { 0 }; u8 cmd_param[24] = { 0 }; io_hdr_v4.guard = 'Q'; io_hdr_v4.protocol = BSG_PROTOCOL_SCSI; io_hdr_v4.subprotocol = BSG_SUB_PROTOCOL_SCSI_TRANSPORT; io_hdr_v4.response = (uintptr_t)sense_buff; io_hdr_v4.max_response_len = ADM_SCSI_CDB_SENSE_MAX_LEN; io_hdr_v4.request_len = sizeof(struct bsg_ioctl_cmd); io_hdr_v4.request = (uintptr_t)(&bsg_param); io_hdr_v4.timeout = BSG_APPEND_TIMEOUT_MS; if (bufsize >0) { io_hdr_v4.din_xferp = (uintptr_t)buf; io_hdr_v4.din_xfer_len = bufsize; } bsg_param.msgcode = 0; bsg_param.ioctl_r64.opcode = ADM_RAID_READ; bsg_param.ioctl_r64.timeout_ms = BSG_APPEND_TIMEOUT_MS; bsg_param.ioctl_r64.info_0.subopcode = ADM_CMD_SHOW_PDLIST; bsg_param.ioctl_r64.addr = (uintptr_t)buf; bsg_param.ioctl_r64.info_1.data_len = bufsize; bsg_param.ioctl_r64.data_len = bufsize; bsg_param.ioctl_r64.info_1.param_len = sizeof(struct cmd_pdlist_idx); memset(cmd_param, 0, 24); *((u16*) (cmd_param + offsetof(struct cmd_pdlist_idx, start_idx))) = start_idx_param; *((u16*) (cmd_param + offsetof(struct cmd_pdlist_idx, count))) = CMD_PDLIST_ONCE_NUM; memcpy((u32*)&bsg_param.ioctl_r64.cdw10, cmd_param, sizeof(struct cmd_pdlist_idx)); int fd; char line[128]; snprintf(line, sizeof(line) - 1, "/dev/bsg/sssraid%d", bus_no); if ((fd = ::open(line, O_RDONLY)) < 0) { printf("open %s error %d\n", line, fd); return (errno); } int r = ioctl(fd, SG_IO, &io_hdr_v4); ::close(fd); if (r < 0) { return (r); } if (statusp != NULL) { *statusp = (io_hdr_v4.transport_status << 0x8) | io_hdr_v4.device_status; printf("statusp = 0x%x\n", *statusp); if (*statusp) { printf("controller returns an error - 0x%x", *statusp); return (-1); } } return (0); } int linux_smart_interface::sssraid_pd_add_list(int bus_no, smart_device_list & devlist) { unsigned disk_num = 0; struct cmd_pdlist_entry pdlist[CMD_PDS_MAX_NUM]; while (disk_num < CMD_PDS_MAX_NUM) { struct cmd_show_pdlist list = {0}; if (sssraid_pdlist_cmd(bus_no, disk_num, &list, sizeof(struct cmd_show_pdlist), NULL) < 0) { return (-1); } if (list.num == 0) break; memcpy(&pdlist[disk_num], list.disks, list.num * sizeof(struct cmd_pdlist_entry)); disk_num += list.num; if (list.num < CMD_PDLIST_ONCE_NUM) break; } // adding all SCSI devices for (unsigned i = 0; i < disk_num; i++) { if(!(pdlist[i].interface == ADM_DEVICE_TYPE_SATA || pdlist[i].interface == ADM_DEVICE_TYPE_SAS || pdlist[i].interface == ADM_DEVICE_TYPE_NVME)) continue; /* non disk device found */ char line[128]; snprintf(line, sizeof(line) - 1, "/dev/bsg/sssraid%d", bus_no); smart_device * dev = new linux_sssraid_device(this, line, (unsigned int)pdlist[i].enc_id, (unsigned int)pdlist[i].slot_id); devlist.push_back(dev); } return (0); } // Return kernel release as integer ("2.6.31" -> 206031) static unsigned get_kernel_release() { struct utsname u; if (uname(&u)) return 0; unsigned x = 0, y = 0, z = 0; if (!(sscanf(u.release, "%u.%u.%u", &x, &y, &z) == 3 && x < 100 && y < 100 && z < 1000 )) return 0; return x * 100000 + y * 1000 + z; } // Check for SCSI host proc_name "hpsa" and HPSA raid_level static bool is_hpsa_in_raid_mode(const char * name) { char path[128]; snprintf(path, sizeof(path), "/sys/block/%s/device", name); char * syshostpath = realpath(path, (char *)0); if (!syshostpath) return false; char * syshost = strrchr(syshostpath, '/'); if (!syshost) { free(syshostpath); return false; } char * hostsep = strchr(++syshost, ':'); if (hostsep) *hostsep = 0; snprintf(path, sizeof(path), "/sys/class/scsi_host/host%s/proc_name", syshost); free(syshostpath); int fd = open(path, O_RDONLY); if (fd < 0) return false; char proc_name[32]; ssize_t n = read(fd, proc_name, sizeof(proc_name) - 1); close(fd); if (n < 4) return false; proc_name[n] = 0; if (proc_name[n - 1] == '\n') proc_name[n - 1] = 0; if (scsi_debugmode > 1) pout("%s -> %s: \"%s\"\n", name, path, proc_name); if (strcmp(proc_name, "hpsa")) return false; // See: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/scsi/hpsa.c?id=6417f03132a6952cd17ddd8eaddbac92b61b17e0#n693 snprintf(path, sizeof(path), "/sys/block/%s/device/raid_level", name); fd = open(path, O_RDONLY); if (fd < 0) return false; char raid_level[4]; n = read(fd, raid_level, sizeof(raid_level) - 1); close(fd); if (n < 3) return false; raid_level[n] = 0; if (strcmp(raid_level, "N/A")) return true; return false; } // Guess device type (ata or scsi) based on device name (Linux // specific) SCSI device name in linux can be sd, sr, scd, st, nst, // osst, nosst and sg. smart_device * linux_smart_interface::autodetect_smart_device(const char * name) { const char * test_name = name; // Dereference symlinks struct stat st; std::string pathbuf; if (!lstat(name, &st) && S_ISLNK(st.st_mode)) { char * p = realpath(name, (char *)0); if (p) { pathbuf = p; free(p); test_name = pathbuf.c_str(); } } // Remove the leading /dev/... if it's there static const char dev_prefix[] = "/dev/"; if (str_starts_with(test_name, dev_prefix)) test_name += strlen(dev_prefix); // form /dev/h* or h* if (str_starts_with(test_name, "h")) return new linux_ata_device(this, name, ""); // form /dev/ide/* or ide/* if (str_starts_with(test_name, "ide/")) return new linux_ata_device(this, name, ""); // form /dev/s* or s* if (str_starts_with(test_name, "s")) { // Try to detect possible USB->(S)ATA bridge unsigned short vendor_id = 0, product_id = 0, version = 0; if (get_usb_id(test_name, vendor_id, product_id, version)) { const char * usbtype = get_usb_dev_type_by_id(vendor_id, product_id, version); if (!usbtype) return 0; // Kernels before 2.6.29 do not support the sense data length // required for SAT ATA PASS-THROUGH(16) if (!strcmp(usbtype, "sat") && get_kernel_release() < 206029) usbtype = "sat,12"; // Return SAT/USB device for this type // (Note: linux_scsi_device::autodetect_open() will not be called in this case) return get_scsi_passthrough_device(usbtype, new linux_scsi_device(this, name, "")); } // Fail if hpsa driver and device is using RAID if (is_hpsa_in_raid_mode(test_name)) return missing_option("-d cciss,N"); // No USB bridge or hpsa driver found, assume regular SCSI device return new linux_scsi_device(this, name, ""); } // form /dev/scsi/* or scsi/* if (str_starts_with(test_name, "scsi/")) return new linux_scsi_device(this, name, ""); // form /dev/bsg/* or bsg/* if (str_starts_with(test_name, "bsg/")) return new linux_scsi_device(this, name, ""); // form /dev/ns* or ns* if (str_starts_with(test_name, "ns")) return new linux_scsi_device(this, name, ""); // form /dev/os* or os* if (str_starts_with(test_name, "os")) return new linux_scsi_device(this, name, ""); // form /dev/nos* or nos* if (str_starts_with(test_name, "nos")) return new linux_scsi_device(this, name, ""); // form /dev/nvme* or nvme* if (str_starts_with(test_name, "nvme")) return new linux_nvme_device(this, name, "", 0 /* use default nsid */); // form /dev/tw[ael]* or tw[ael]* if (str_starts_with(test_name, "tw") && strchr("ael", test_name[2])) return missing_option("-d 3ware,N"); // form /dev/cciss/* or cciss/* if (str_starts_with(test_name, "cciss/")) return missing_option("-d cciss,N"); // we failed to recognize any of the forms return 0; } smart_device * linux_smart_interface::get_custom_smart_device(const char * name, const char * type) { // Marvell ? if (!strcmp(type, "marvell")) return new linux_marvell_device(this, name, type); // 3Ware ? int disknum = -1, n1 = -1, n2 = -1; if (sscanf(type, "3ware,%n%d%n", &n1, &disknum, &n2) == 1 || n1 == 6) { if (n2 != (int)strlen(type)) { set_err(EINVAL, "Option -d 3ware,N requires N to be a non-negative integer"); return 0; } if (!(0 <= disknum && disknum <= 127)) { set_err(EINVAL, "Option -d 3ware,N (N=%d) must have 0 <= N <= 127", disknum); return 0; } if (!strncmp(name, "/dev/twl", 8)) return new linux_escalade_device(this, name, linux_escalade_device::AMCC_3WARE_9700_CHAR, disknum); else if (!strncmp(name, "/dev/twa", 8)) return new linux_escalade_device(this, name, linux_escalade_device::AMCC_3WARE_9000_CHAR, disknum); else if (!strncmp(name, "/dev/twe", 8)) return new linux_escalade_device(this, name, linux_escalade_device::AMCC_3WARE_678K_CHAR, disknum); else return new linux_escalade_device(this, name, linux_escalade_device::AMCC_3WARE_678K, disknum); } // Areca? disknum = n1 = n2 = -1; int encnum = 1; if (sscanf(type, "areca,%n%d/%d%n", &n1, &disknum, &encnum, &n2) >= 1 || n1 == 6) { if (!(1 <= disknum && disknum <= 128)) { set_err(EINVAL, "Option -d areca,N/E (N=%d) must have 1 <= N <= 128", disknum); return 0; } if (!(1 <= encnum && encnum <= 8)) { set_err(EINVAL, "Option -d areca,N/E (E=%d) must have 1 <= E <= 8", encnum); return 0; } return new linux_areca_ata_device(this, name, disknum, encnum); } // Highpoint ? int controller = -1, channel = -1; disknum = 1; n1 = n2 = -1; int n3 = -1; if (sscanf(type, "hpt,%n%d/%d%n/%d%n", &n1, &controller, &channel, &n2, &disknum, &n3) >= 2 || n1 == 4) { int len = strlen(type); if (!(n2 == len || n3 == len)) { set_err(EINVAL, "Option '-d hpt,L/M/N' supports 2-3 items"); return 0; } if (!(1 <= controller && controller <= 8)) { set_err(EINVAL, "Option '-d hpt,L/M/N' invalid controller id L supplied"); return 0; } if (!(1 <= channel && channel <= 128)) { set_err(EINVAL, "Option '-d hpt,L/M/N' invalid channel number M supplied"); return 0; } if (!(1 <= disknum && disknum <= 15)) { set_err(EINVAL, "Option '-d hpt,L/M/N' invalid pmport number N supplied"); return 0; } return new linux_highpoint_device(this, name, controller, channel, disknum); } #ifdef HAVE_LINUX_CCISS_IOCTL_H // CCISS ? disknum = n1 = n2 = -1; if (sscanf(type, "cciss,%n%d%n", &n1, &disknum, &n2) == 1 || n1 == 6) { if (n2 != (int)strlen(type)) { set_err(EINVAL, "Option -d cciss,N requires N to be a non-negative integer"); return 0; } if (!(0 <= disknum && disknum <= 127)) { set_err(EINVAL, "Option -d cciss,N (N=%d) must have 0 <= N <= 127", disknum); return 0; } return get_sat_device("sat,auto", new linux_cciss_device(this, name, disknum)); } #endif // HAVE_LINUX_CCISS_IOCTL_H // MegaRAID ? if (sscanf(type, "megaraid,%d", &disknum) == 1) { return new linux_megaraid_device(this, name, disknum); } // SSSRAID unsigned eid = -1, sid = -1; if (sscanf(type, "sssraid,%u,%u", &eid, &sid) == 2) { return new linux_sssraid_device(this, name, eid, sid); } //aacraid? unsigned host, chan, device; if (sscanf(type, "aacraid,%u,%u,%u", &host, &chan, &device) == 3) { //return new linux_aacraid_device(this,name,channel,device); return get_sat_device("sat,auto", new linux_aacraid_device(this, name, host, chan, device)); } return 0; } std::string linux_smart_interface::get_valid_custom_dev_types_str() { return "marvell, areca,N/E, 3ware,N, hpt,L/M/N, megaraid,N, aacraid,H,L,ID, sssraid,E,S" #ifdef HAVE_LINUX_CCISS_IOCTL_H ", cciss,N" #endif ; } } // namespace ///////////////////////////////////////////////////////////////////////////// /// Initialize platform interface and register with smi() void smart_interface::init() { static os_linux::linux_smart_interface the_interface; smart_interface::set(&the_interface); }